Updated on 2024/04/05

写真a

 
SHIBAHARA MASAKAZU
 
Organization
Graduate School of Engineering Division of Aerospace and Marine-System Engineering Associate Professor
School of Engineering Department of Marine System Engineering
Title
Associate Professor
Affiliation
Institute of Engineering
Contact information
メールアドレス

Position

  • Graduate School of Engineering Division of Aerospace and Marine-System Engineering 

    Associate Professor  2022.04 - Now

  • School of Engineering Department of Marine System Engineering 

    Associate Professor  2022.04 - Now

Degree

  • 修士 （ Others ） (   Osaka University )

  • 博士 （ Others ） (   Osaka University )

  • 学士 （ Others ） (   Osaka University )

Research Areas

  • Nanotechnology/Materials / Material processing and microstructure control  / 材料加工・処理

  • Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Marine engineering  / 船舶海洋工学

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Measurement engineering  / 計測工学

Research subject summary

  • ピーニングのFEMシミュレーション

  • 溶接高温割れのFEMシミュレーション

  • 熱処理のFEMシミュレーション

  • メッシュレス法を用いた溶接移動熱現問題の力学解析

  • 多層溶接時における溶接変形・残留応力解析

  • 大規模構造溶接組立時における溶接変形の解析

  • 船舶建造時における線状加熱の自動化に関する研究

  • 理想化陽解法FEMによる大規模構造の高速解析法の開発

  • 溶接変形・残留応力の推定

  • 溶接割れの発生予測に関する理論的研究

  • 画像処理による非接触変形・応力測定法に関する研究

  • デジタルカメラを用いた三次元溶接変形計測

  • 溶接変形・残留応力の大規模解析

Research Career

  • 　

    熱処理、相変態、ピーニング 

  • 　

    大規模解析、メッシュレス法、MLPG法、理想化陽解法FEM、温度依存型界面要素 

  • 　

    高温割れ、画像計測、FEM、溶接変形、数値シミュレーション 

Professional Memberships

  • 日本船舶海洋工学会

    2005.04 - Now

  • 日本工学教育協会

    2003.04 - Now   Domestic

  • 日本造船学会

    2002.12 - 2005.03   Domestic

  • International Society of Offshore and Polar Engineers

    2002.11 - Now   Overseas

  • 日本機械学会

    2002.11 - Now   Domestic

  • 日本計算工学会

    2002.10 - Now   Domestic

  • 溶接学会

    2002.04 - Now   Domestic

  • 関西造船協会

    2002.04 - 2005.03   Domestic

  • 溶接学会

    1999.12 - 2002.03   Domestic

  • 関西造船協会

    1998.04 - 2002.03   Domestic

  • ISOPE

  • 日本計算工学会

  • 日本機械学会

  • ISOPE

▼display all

Awards

  • 軽金属溶接論文賞

    2022   「摩擦攪拌接合時の力学的挙動の数値解析的検討」

  • 溶接学会軽構造接合加工研究委員会講演奨励賞

    2011.06   溶接学会  

    　More details

    Country：Japan

  • 大阪府立大学学長顕彰

    2010.05   大阪府立大学  

    　More details

    Country：Japan

  • シンポジウム論文賞

    2009.11   溶接学会溶接構造シンポジウム2009  

    　More details

    Country：Japan

  • 溶接学会国際協力賞

    2009.04   溶接学会  

    　More details

    Country：Japan

  • 日本船舶海洋工学会関西支部支部長賞

    2008.05   日本船舶海洋工学会  

    　More details

    Country：Japan

  • 大阪府立大学学長顕彰

    2005.11   大阪府立大学  

    　More details

    Country：Japan

  • 溶接学会研究発表賞

    2005.04   溶接学会  

    　More details

    Country：Japan

  • 金沢工業大学理事長賞

    2003.10   金沢工業大学  

    　More details

    Country：Japan

  • 溶接学会論文賞

    2002.04   溶接学会  

    　More details

    Country：Japan

  • 関西造船協会賞論文奨励賞

    2002.01   関西造船協会  

    　More details

    Country：Japan

  • 溶接学会溶接構造シンポジウム奨励賞

    1999.12   溶接学会  

    　More details

    Country：Japan

▼display all

Job Career (off-campus)

  • 大阪府立大学   計算科学研究所

    2020.11

  • 大阪府立大学   海洋科学技術センター

    2020.04 - Now

  • 大阪府立大学   総合安全科学研究所

    2015.04 - Now

  • 大阪府立大学   ものづくりイノベーション研究所

    2013.06 - Now

  • Osaka University   Joining and Welding Research Institute

    2012.04 - Now

  • 大阪府立大学   溶接構造ダイナミクス研究所

    2008.04 - Now

▼display all

Papers

  • Effect of Transformation Plasticity Behavior on the Accuracy of Weld Residual Stress Analysis of Low Alloy Steel

    HASHIBA Daisuke, HONMA Yuta, YANAGISAWA Yusuke, OCHIAI Tomoyuki, IKUSHIMA Kazuki, KAWAHARA Atsushi, SHIBAHARA Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   42 ( 1 )   29 - 39   2024.03（ ISSN:02884771 ） （ eISSN:24348252 ）

    　More details

    Weld residual stresses are affected by phase transformation of low-alloy steels. When phase transformation occurs, transformation plasticity occurs in addition to transformation expansion. Conventional predictions of welding residual stress using the finite element method often consider only transformation expansion, and there are few cases in which transformation plasticity is taken into factor. In this study, welding residual stress analysis that factors in transformation plasticity was performed to verify the effect of transformation plasticity on welding residual stress. The results show that the prediction accuracy of welding residual stress due to transformation expansion of low-alloy steel is improved by factors in transformation plasticity.

    DOI： 10.2207/qjjws.42.29

  • Study of various parameters on residual stress relaxation for different welded components

    Gadallah R. , H. Murakawa , M. Shibahara

    214   2024.03（ ISSN:0143974X ）

    　More details

  • Thickness and weld orientation effects on fatigue crack growth after a single tensile overload

    Gadallah R. , H. Murakawa , M. Shibahara

    International Journal of Pressure Vessels and Piping   206   2023.12（ ISSN:03080161 ）

    　More details

  • 理想化陽解法FEMを用いた大型鋼構造物の溶接組立シミュレーション

    橋場大輔、柳沢祐介、本閒祐太、山内悠暉、前田新太郎、生島一樹、河原充、柴原正和

    溶接構造シンポジウム2023   2023.11

  • AI線状加熱ロボットを用いた自動加熱システムの構築

    丹後義彦、駒田周治、加藤拓也、廣瀬天空、野津亮、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 耐候性鋼材を用いた鋼床板溶接時の終端割れに関する力学的検討

    永木勇人、手銭永遠、前田新太郎、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 溶接時の面外変形に及ぼす諸因子の影響に関する力学的検討

    幅田真史、田中亮匡、前田新太郎、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • データ同化技術を用いた配管溶接継手のクリープ損傷デジタルツインシステム

    木谷悠二、麻寧緒、山内悠暉、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • AI線状加熱による任意形状自動作成に関する検討

    加藤拓也、廣瀬天空、前田新太郎、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • AI線状加熱の開発とその応用

    加藤拓也、廣瀬天空、野津亮、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 摩擦攪拌接合時のツール形状がツール損傷に及ぼす影響に関する数値解析的検討

    生島一樹、九鬼正治、山内悠暉、木谷悠二、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 発電用プラント配管における溶接熱影響部の余寿命推定に関する検討

    山内悠暉、松岡諒、木谷悠二、生島一樹、荒井正行、西田秀高、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 修正熱収縮法の提案とその応用

    王聞達、幅田真史、手銭永遠、前田新太郎、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 並進加熱による高温割れ防止法の提案

    前田新太郎、兼本拳多、三ッ井佑太、王聞達、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 逆解析によるガス加熱時の入熱パラメータ推定に関する検討

    松岡諒、山内悠暉、峰松伸行、前田新太郎、河原充、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • ガス加熱時の入熱パラメータが変形に及ぼす影

    柴原正和、手銭永遠、高橋陸、松岡諒、前田新太郎、生島一樹

    溶接構造シンポジウム2023   2023.11

  • 溶接時の柱状晶凝固成長簡易解析手法を用いた溶接凝固割れについての検討

    前田新太郎、幅田真史、王聞達、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • 冶金学-力学を考慮した高温割れ解析法の開発とその応用

    前田新太郎、幅田真史、王聞達、生島一樹、柴原正和

    溶接構造シンポジウム2023   2023.11

  • Investigation of fracture parameters for a surface-cracked multi-pass T-joint considering welding residual stress

    Theoretical and Applied Fracture Mechanics   127   2023.10（ ISSN:01678442 ）

    　More details

  • Creep Analysis of Large-scale Weld Pipe Structure in Thermal Power Plant

    Kitani Yuji, Yamauchi Yuki, Ikushima Kazuki, Nishida Hidetaka, Ninshu Ma, Shibahara Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   41 ( 2 )   58s - 62s   2023.08（ ISSN:02884771 ） （ eISSN:24348252 ）

    　More details

    Publishing type：Research paper (scientific journal)  

    A creep analysis method was developed to evaluate the creep damage of hot reheat pipes in thermal power plants. In this method, a large-scale thermo-elastic-plastic creep analysis was achieved by introducing Norton's law into the Idealized Explicit FEM(IEFEM). In order to achieve an efficiently analysis of a large-scale structure, a multigrid method was also introduced to the IEFEM. The developed method was applied to the prediction of creep strain in a hot reheat pipes of thermal power plant for over a 10 year period. The effect of structural inhomogeneity on creep strain distribution was analyzed. Finally, the computational results of whole model were compared with those of the zooming model. As a result, it was confirmed that the creep strain obtained by the zooming analysis and the whole analysis have a difference in the creep strain up to 15%. This indicated that analysis of the whole piping system may lead to more accurate evaluation on creep strain.

    DOI： 10.2207/qjjws.41.58s

  • Effect of Load Changing on Creep fatigue Life of Pipe Joints

    Kitani Yuji, Ikushima Kazuki, Arai Masayuki, Nishida Hidetaka, Ninshu Ma, Shibahara Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   41 ( 2 )   36s - 40s   2023.08（ ISSN:02884771 ） （ eISSN:24348252 ）

    　More details

    Publishing type：Research paper (scientific journal)  

    To investigate the effect of load changing on creep fatigue life of pipe joints, a creep fatigue analysis was conducted by introducing evaluation method of the creep fatigue life developed by Arai et al. to Idealized Explicit FEM which can perform large scale nonlinear structural analysis with realistic computing resources. First, an analysis for simulating experimental phenomena was performed and the predicted creep fatigue life was compared with the measured one to verify the analysis accuracy. As a result, it was confirmed that the predicted creep fatigue life by the constructed method was in good agreement with the actual creep fatigue life. In addition, the predicted fracture locations by the analysis and the actual damage locations agreed each other. To confirm the effects of the bending and torsional moments, 203 different bending torsional conditions were assumed and their analyses were performed. It is found that the creep fatigue life can be shorter with the larger bending moment ratio.

    DOI： 10.2207/qjjws.41.36s

  • Mechanical study of Trans-Varestraint Test by Using Numerical Analysis of Hot Cracking Based on Idealized Explicit FEM

    MAEDA Shintaro, Wenda WANG, HABATA Masashi, IKUSHIMA Kazuki, SHIBAHARA Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   41 ( 2 )   21s - 25s   2023.08（ ISSN:02884771 ） （ eISSN:24348252 ）

    　More details

    Trans-Varestraint test is basically used for hot cracking susceptibility of materials. In the Trans-Varestrain test, bending deformation is applied to the specimen during welding to produce cracking. From the shape and size of cracks, the hot cracking susceptibility indices such as Brittle temperature range (BTR) and critical strain are obtained. The nominal strain generated by the bending can be calculated from the specimen thickness and the radius of the bending block. However, it has been reported that in this test, the estimated nominal strain and the actual strain acting on the weld metal differ significantly due to localized heat. In this study, hot cracking analysis using Idealized explicit FEM, which can compute large-scale thermal elastic-plastic analysis with smaller computing time and memory, is applied to the Trans-Varestraint test. The effects of heat input and test conditions on the mechanical behavior of the welded part during the Trans-Varestraint test are investigated. The results indicate that the strain acting on the welded part during the Trans-Varestraint test is larger than the nominal strain. In addition, it is found that the welding speed has a significant effect on the amount of strain acting on the molten part. It is suggested that these were caused by local melting of the specimens, resulting in a decrease in strength. In addition, bending speeds and welding speeds affect the amount of strain produced by bending and the size of the area in which the strain occurs. In other words, they affect the size of the region and the amount of strain generated in the BTR and have a significant effect on the maximum crack length obtained in the Trans-Varestraint test.

    DOI： 10.2207/qjjws.41.21s

  • Shell–solid Coupling Analysis for Mechanical Behavior of Complex Thin-plate Weld Structure

    Zhihao LI, YAMAUCHI Yuki, MAEDA Shintaro, IKUSHIMA Kazuki, SHIBAHARA Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   41 ( 2 )   31s - 35s   2023.08（ ISSN:02884771 ） （ eISSN:24348252 ）

    　More details

    Complex thin-plate structures such as ships and bridges are welded together with numerous thin plates and stiffeners. Thermal elastic-plastic analysis based on the finite element method is a fundamental tool for predicting welding deformations and residual stresses in large steel structures. The shell-solid coupling method can improve the analysis scale and efficiency compared to the solid element method. This study aims to introduce the shell-solid coupling analysis method into welding mechanical analyses to improve the efficiency of computation and modeling. The guideline for the use of the proposed method was also investigated. The proposed shell-solid coupled analysis was constructed based on a multipoint constraint technique which erases the degrees of freedom at the shell-solid interface. It was applied to the analysis of welding mechanics of the fundamental T-joint model to validate the accuracy of the proposed shell-solid coupling analysis. The proposed method was also applied to the welding deformation analysis of a panel structure model for a car-carrier ship. The results revealed that computing time of the proposed method was less than 30 percent of that of the conventional FEM and the proposed method has almost the same analysis accuracy as conventional techniques. The proposed method could achieve a more efficient analysis than the conventional method.

    DOI： 10.2207/qjjws.41.31s

  • Study on Application of Efficient FE Modeling Technique in Analysis of Welding Mechanics

    MAEDA Shintaro, Zhihao LI, IKUSHIMA Kazuki, SHIBAHARA Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   41 ( 2 )   16s - 20s   2023.08（ ISSN:02884771 ） （ eISSN:24348252 ）

    　More details

    Thermal elastic plastic (TEP) finite element analysis (FEA) is widely used to analyze welding mechanical phenomena such as welding deformation and residual stress. One of the problems of welding mechanical analysis using finite element method (FEM) is that it requires a lot of time for preprocessing such as modeling and meshing. In this study, the explicit master-slave elimination with multipoint constraints (MPCs) was introduced to the Idealized explicit FEM (IEFEM) for efficient FE modeling and welding mechanical analysis of large-scale complex structures. The proposed method was applied to T-joint welds to verify its accuracy when using the explicit master-slave elimination, and the effects of the ratio of master and slave element sizes on results of the heat conduction (HC) analysis and TEP analysis were investigated. As a result, it was confirmed that the welding mechanical analysis using the proposed method is in good agreement with the analysis results using the ordinary node-shared model. It was also confirmed that the analysis results did not agree when the element size of the slave was large compared to the element size of the master. Finally, the proposed method was also applied to the analysis of a welded structure including multi-layer welds and fillet welds for steel column-beam connections. It was confirmed that the proposed method was useful in performing fast calculations with highly efficient FE modeling for large-scale steel column-beam joint welds.

    DOI： 10.2207/qjjws.41.16s

  • Digital twin in welding and gas heating

    Masakazu SHIBAHARA

    International Seminar on Welding Science and Engineering 2023 (WSE2023)   2023.07

  • AI-based Optimization of Welding Sequence in Mult-pass Welding

    Sora HIROSE, Takuya KATO, Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    International Seminar on Welding Science and Engineering 2023 (WSE2023)   2023.07

  • Development of Digital Twin for Structures with Thermal-Elastic-Plastic Field

    Ryo MATSUOKA, Nobuyuki MINEMATSU, Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    International Seminar on Welding Science and Engineering 2023 (WSE2023)   2023.07

  • Numerical Investigation for an Optimized Procedure of Overlay Welding Repair for the Metal Loss of Lage-scale Structures Reviewed

    Junya Takahashi, Yuki Yamauchi, Masakazu Shibahara

    ASME 2023 Pressure Vessels & Piping (PVP2023)   2023.03

    　More details

    Kind of work：Joint Work  

  • 大規模非線形構造解析手法を用いた配管継手のクリープ疲労解析

    木谷悠二、生島一樹、荒井正行、西田秀高、麻寧緒、柴原正和

    溶接学会論文集   2023.03

    　More details

    Kind of work：Joint Work  

  • Effect of Load Changing on Creep-Fatigue Life of Pipe Joints

    Yuji Kitani, Kazuki Ikushima, Masayuki Arai, Hidetaka Nishida, Ninshu Ma, Masakazu Shibahara

    Quartely Journal of the Japan Welding Society   2023.03

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001408

  • Creep Analysis of Large-scale Weld Pipe Structure in Thermal Power Plant

    Yuji Kitani, Yuki Yamauchi, Kazuki Ikushima, Hidetaka Nishida, Ninshu Ma, Masakazu Shibahara

    Quartely Journal of the Japan Welding Society   2023.03

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001407

  • Mechanical study of Trans-Varestraint Test by Using Numerical Analysis of Hot Cracking Based on Idealized Explicit FEM

    Shintaro MAEDA, Wenda WANG, Masashi HABATA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Quartely Journal of the Japan Welding Society   2023.03

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001406

  • Shell–solid Coupling Analysis of Mechanical Behavior in Complex Thin-plate Structure during Welding Reviewed

    Zhihao LI,  Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Quartely Journal of the Japan Welding Society   41 ( 2 )   21s - 26s   2023.03

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001405

  • Study on Application of Efficient FE Modeling Technique in Analysis of Weld Mechanics Reviewed

    Shintaro MAEDA, Zhihao LI, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Quartely Journal of the Japan Welding Society   2023.03

    　More details

    Kind of work：Joint Work  

  • Investigation of thickness and welding residual stress effects on fatigue crack growth Reviewed

    Ramy Gadallah, Hidekazu Murakawa, Masakazu Shibahara

    Journal of Constructional Steel Research   201   2023.02

    　More details

  • Study on Influence of Gas Cutting When Remobing Constraint Jig Plates on Welding Deformation After Submerged Arc Welding Reviewed

    Takuya, Kato, Ryo Ashida, Kazuki Ikushima, Shintaro Maeda, Kento Ozaki, Hayato Nagaki, Toru Omae, Masakazu Shibahara

    Welding International   37 ( 1 )   46 - 67   2023.02

  • 拘束治具取り外し時のガス切断がサブマージアーク溶接後の変形に及ぼす影響についての検討 Reviewed

    加藤拓也、芦田崚、生島一樹、前田新太郎、尾嵜健人、大前暢、柴原正和

    溶接学会論文集   20 ( 4 )   186 - 194   2022.12

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001403

  • Effects of specimen size and stress ratio on fatigue crack growth after a single tensile overload Reviewed

    Ramy Gadallah, Hidekazu Murakawa, Masakazu Shibahara

    Ocean Engineering   261   2022.10

    　More details

  • Study on Application of Efficient FE Modeling Technique in Analysis of Weld Mechanics

    Zhihao LI, Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    The 6th International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation (Visual JW), 161   2022.10

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001410

  • Effect of Load Changing on Creep-Fatigue Life of Pipe Joints

    Yuji Kitani, Kazuki Ikushima, Masayuki Arai, Hidetaka Nishida, Ninshu Ma, Masakazu Shibahara

    The 6th International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation (Visual JW), 162   2022.10

    　More details

    Kind of work：Joint Work  

  • Creep Analysis of Large-scale Weld Pipe Structure in Thermal Power Plant

    Yuji Kitani, Yuki Yamauchi, Kazuki Ikushima, Hidetaka Nishida, Ninshu Ma, Masakazu Shibahara

    The 6th International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation (Visual JW), 15   2022.10

    　More details

    Kind of work：Joint Work  

  • Mechanical study of Trans-Varestraint Test by Using Numerical Analysis of Hot Cracking Based on Idealized Explicit FEM

    Shintaro MAEDA, Wenda WANG, Masashi HABATA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    The 6th International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation (Visual JW), 9   2022.10

    　More details

    Kind of work：Joint Work  

  • Shell–solid Coupling Analysis of Mechanical Behavior in Complex Thin-plate Structure during Welding

    Zhihao LI, Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    The 6th International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation (Visual JW), 11   2022.10

    　More details

    Kind of work：Joint Work  

  • Analysis of Solidification Cracking During Large Heat Input Butt Welding Considering Mechanical and Metallurgical Factors

    Shintaro MAEDA, Takuya KATO, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    13th International Seminar Numerical Analysis of Weldability, Austria   2022.09

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001409

  • Prediction of Welding Deformation of Large-scale Structure Using Inherent Deformation Computed by Using Machine Learning

    KATO Takuya, MAEDA Shintaro, IKUSHIMA Kazuki, SHIBAHARA Masakazu

    13th International Seminar Numerical Analysis of Weldability, Austria   2022.09

    　More details

    Kind of work：Joint Work  

  • Study on Prevention Method of Hot Cracking Under Butt Welding Reviewed

    MAEDA Shintaro, SHIBAHARA Masakazu, IKUSHIMA Kazuki，MIWA Tsuyoshi, YAMAZAKI Kei,NISHIHARA Kensaku, TAKEDA Hiroyuki and MA Ninshu

    Welding International   36 ( 9 )   543 - 554   2022.08

    　More details

    Kind of work：Joint Work  

  • Development of Analysis Method for Hot Cracking Considering Mechanical and Metallurgical Factors Reviewed

    MAEDA Shintaro, IKUSHIMA Kazuki, SHIBAHARA Masakazu and MA Ninshu

    Welding International   36 ( 9 )   530 - 542   2022.08

    　More details

    Kind of work：Joint Work  

  • Fundamental study on the effect of specimen size and loading conditions on the fatigue crack growth behavior

    Ramy Gadallah, Hidekazu Murakawa, Masakazu SHibahara

    IIW 2022 International Conference on Welding and Joining，XIII-2953-2022   2022.07

    　More details

    Kind of work：Joint Work  

  • APPROACH TO AUTOMATION OF LINE HEATING BY COMBINATION OF REINFORCEMENT LEARNING AND FEM SIMULATION Reviewed

    M. Shibahara, K. Ikushima, M. Maekawa, R. Ashida, T. Kato, A. Notsu

    ASME Open Journal of Engineering   1   011024   2022.06

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/0002001404

  • Numerical Study on Effect of Tool Shape on Mechanical Behavior during Friction Stir Welding

    Yamauchi Yuki, Li Zhihao, Kitani Yuji, Kuki Masaharu, Ikushima Kazuki, Shibahara Masakazu

    Tetsu-to-Hagane   108 ( 12 )   991 - 1001   2022（ ISSN:00211575 ） （ eISSN:18832954 ）

    　More details

    <p>In friction stir welding, tool shape can effect the mechanical behavior during joining. In this study, the effect of tool shape on the temperature distribution during joining was investigated using numerical simulation method based on particle method. The influence of joining condition such as rotational speed, traveling speed and tilt angle on cylindrical tool and semi-spherical tool were investigated using the particle method. From these results, it was found that the rotation speed and the traveling speed have larger effect than tilt angle on the temperature distribution. It was also found that the cylindrical tool and semi-spherical tool almost have same tendency corresponding to the parameter change. Stresses in tool were also investigated according to the predicted pressure distribution by the particle method. As a result, it was found that the semi-spherical tool can reduce the stress than the cylindrical tool.</p>

    DOI： 10.2355/tetsutohagane.tetsu-2022-044

  • Study on Influence of Gas Cutting When Removing Constraint Jig Plates on Welding Deformation After Submerged Arc Welding

    KATO Takuya, ASHIDA Ryo, IKUSHIMA Kazuki, MAEDA Shintaro, OZAKI Kento, NAGAKI Hayato, OMAE Toru, SHIBAHARA Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   40 ( 4 )   186 - 194   2022（ ISSN:0288-4771 ） （ eISSN:2434-8252 ）

    　More details

    In order to investigate the effect of gas cutting during removal of restraining jig on deformation after submerged arc welding, the authors have conducted the experiments on a series of processes using a constraint jig plates in a test specimen modeling the deck of a steel bridge. In this paper, an Idealized explicit FEM developed by the authors is applied to investigate in detail the factors that cause springback deformation during the gas cutting of the constraint jig plates.
    A series of welding and cutting processes using a constraint jig plates were modeled, and then a three-dimensional thermo-elastic-plastic analysis was performed using the Idealized explicit FEM. As a result, it is confirmed that the experimental and analytical results were in good agreement, and the validity of the analysis method was demonstrated. In addition, it is found that the inherent deformation during gas cutting had a significant influence on the springback deformation by the numerical analysis. Then, we proposed a simplified mechanical model to estimate the deformation during gas cutting. As a result, it was confirmed that the proposed mechanical model showed quantitatively good agreement with the springback deformation.

    DOI： 10.2207/qjjws.40.186

  • 突合せ溶接時の溶接高温割れ防止技術に関する検討 Reviewed

    前田 新太郎, 柴原 正和, 生島 一樹, 三輪 剛士, 山崎 圭, 西原 健作, 武田 裕之, 麻　寧緒

    溶接学会論文集 雑誌   Vol.39 ( No.4 )   396 - 405   2021.12

    　More details

    Kind of work：Joint Work  

  • Numerical investigation on the effect of thickness and stress level on fatigue crack growth in notched specimens Reviewed

    Ramy Gadallah, Hidekazu Murakawa, Kazuki Ikushima, Masakazu Shibahara, Seiichiro Tsutsumi

    Theoretical and Applied Fracture Mechanics   116   2021.12

    　More details

    Kind of work：Joint Work  

  • 力学および冶金学的因子を考慮した溶接高温割れ解析手法の開発 Reviewed

    前田 新太郎, 生島 一樹, 柴原 正和, 麻 寧緒

    溶接学会論文集 雑誌   Vol.39 ( No.4 )   386 - 365   2021.12

    　More details

    Kind of work：Joint Work  

  • Numerical investigation on the effect of thickness and stress level on fatigue crack growth in notched specimens

    Ramy Gadallah, Hidekazu Murakawa, Kazuki Ikushima, Masakazu Shibahara, Seiichiro Tsutsumi

    Theoretical and Applied Fracture Mechanics   116   2021.12（ ISSN:0167-8442 ）

    　More details

    Publishing type：Research paper (scientific journal)  

    The effect of specimen thickness on the behavior of fatigue crack growth rate (FCGR) requires rigorous investigation because the thickness effect is not independent and could be a function of the specimen geometry, material properties, loading conditions, and environmental conditions. The purpose of this study is to numerically investigate the effect of specimen thickness and stress level on the behavior of FCGR at the specimen-free surface and mid-thickness in notched mild steel specimens. Elastic-plastic numerical calculations were performed based on FEM using the domain integral method to calculate the cyclic J-integral parameter, ΔJ, which was used for calculating FCGR. Different specimen thicknesses and various constant amplitude stress levels were used in the numerical calculations. Crack growth calculations were carried out using the node release technique in which the history of the former crack was considered. The calculated fatigue lives were firstly verified against the experiments taken from the literature. The results of numerical calculations showed that no significant thickness effect was noticed at the mid-thickness for calculations carried out below general yield while when the stress level is close to general yield the thinner specimens showed faster crack growth rates. Further, thickness has a remarkable effect on the crack growth rate at the free surface when the applied stress level is below and close to general yield where the thinner specimens gave faster crack growth rates. The crack-tip driving force ΔJ and the local strains and stresses induced ahead of the crack front could explain the mechanics and behavior of FCGR for the applied thicknesses and stress levels. The distributions of the local strains and stresses could also reveal the effect of the local material ahead of the crack front on the behavior of crack growth.

    DOI： 10.1016/j.tafmec.2021.103138

  • Development of Analysis Method for Hot Cracking Considering Mechanical and Metallurgical Factors Reviewed

    MAEDA Shintaro, IKUSHIMA Kazuki, SHIBAHARA Masakazu, MA Ninshu

    QJJWS   39 ( 4 )   386 - 395   2021.11（ ISSN:0288-4771 ） （ eISSN:2434-8252 ）

    　More details

    Publishing type：Research paper (scientific journal)  

    Since welding hot cracking is one of the most harmful defects which may largely reduce the strength of welded joints and structures, it is very important to study the prediction and prevention of its generation. Hot cracking is caused by both mechanical and metallurgical factors.
    In this research, authors proposed a new computational method for evaluating the occurrence of hot cracking through considering both mechanical and metallurgical behavior. As the metallurgical behavior, strain due to solidification shrinkage and mechanical resistance of molten metal were modelled using the solidification ratio as a parameter. The mechanical behavior, an index for generation of hot cracking using the increment of plastic strain is proposed. In addition, authors proposed a simplified prediction method using the temperature gradient for the direction of columnar crystal growth, which affects the location of hot cracking, and is used to evaluate the associate angle of the columnar crystals.
    The developed method was applied to butt welding. As a result, it was found that the predicted direction of columnar crystal growth by the proposed method is in good agreement with the experimental results. In addition, the generation of hot cracking in the same butt welding was predicted using the proposed method and the obtained cracking positions agreed well with those observed by experiment. The Influence of the strain of solidification shrinkage on hot cracking was investigated in relation to the surrounding constraints, the temperature gradient and solidification mode, which are presumed to be highly related to the occurrence of hot cracking.
    From the above results, it can be concluded that the proposed method can analyze the effects of mechanical and metallurgical factors on hot
    cracking.

    DOI： 10.2207/qjjws.39.386

    CiNii Article

    Other URL： https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19H02366/

  • Study on Mechanical Behavior during Friction Stir Welding Using Numerical Simulation Reviewed

    Ikushima Kazuki, Li Zhihao, Kitani Yuji, Maeda Shintaro, Miyasaka Fumikazu, Shibahara Masakazu

    Journal of Light Metal Welding   59 ( 5 )   10 - 16   2021.05（ ISSN:0368-5306 ） （ eISSN:2186-618X ）

    　More details

    In the present study, the authors proposed a numerical analysis procedure to evaluate both material flow and tool strength due to friction stir welding <tt>(</tt>FSW<tt>) </tt>using particle method and finite element method <tt>(</tt>FEM<tt>)</tt>.In the proposed evaluation method, material flow during FSW is simulated by the particle method. And then, the calculated pressure distribution on the tool surface is interpolated in the FEM analysis for the evaluation of tool strength. The proposed method was applied to the investigation of the influence of the traveling and rotation speed on the maximum temperature in the welded material. Stresses on the tool surface was also investigated using the proposed method. The result indicated that the traveling speed has large effect on surface stress while the effect of rotation speed on surface stress is small.

    DOI： 10.11283/jlwa.59.10

    CiNii Article

  • 摩擦撹拌接合時の力学的挙動の数値解析的検討 Reviewed

    生島 一樹, 李 志浩, 木谷 悠二, 前田 新太郎, 宮坂 史和, 柴原 正和

    軽金属溶接 雑誌   Vol.59 ( No.5 )   170 - 176   2021.05

    　More details

    Kind of work：Joint Work  

  • Enhanced idealized explicit FEM for predicting welding deformation in complex large-scaled structure and application to the real structure Reviewed

    Vol.33 ( Issue 1 )   pp.1 - 16   2021.02

    　More details

    Kind of work：Joint Work  

    Repository URL： http://hdl.handle.net/10466/00017404

  • Enhanced idealized explicit FEM for predicting welding deformation in complex large-scaled Reviewed

    生島 一樹, 柴原 正和

    Welding International   Vol.33:1-3   1 - 16   2021

    　More details

    Publishing type：Research paper (scientific journal)  

  • Prediction of welding deformation of automotive component using large-scale thermal elastic plastic analysis method Reviewed

    Vol.38 ( No.2 )   pp.149s - 153s   2020.06

    　More details

    Kind of work：Joint Work  

  • Efficient modelling on analysis of welding mechanics using mesh superposition method Reviewed

    Vol.38 ( No.2 )   pp.120s - 125s   2020.06

    　More details

    Kind of work：Joint Work  

  • コンター法を用いた実構造物の残留応力計測 Reviewed

    生島 一樹, 柴原 正和, 河尻 義貴, 沖見 優衣, 内田 友樹, 秋田 貢一, 鈴木 裕士, 諸岡 聡

    日本船舶海洋工学会論文集 雑誌   Vol.30   pp.123 - 130   2019.12

    　More details

    Kind of work：Joint Work  

  • Objectives and Activities of Research Grope for Practical Use of Welding Mechanics Simulation

    M. Shibahara, A. Kawahara, M. Nakatani, Y. Yamazaki, K. Oda, S. Tadano, Y. Nakatani, D. Takakura, H. Fukazawa, A. Kunugi, S. Narita, N. Yanagida, H. Murakami, T.Onozato, T. Noto, N. Otani, H. Ueda, H. Nagaki, S. Maeda, H. Serizawa, N. Ma, H. Murakawa

    Proceedings of National Symposium on Welding Mechanics and Design 2019   469 - 472   2019.12

    　More details

    Publishing type：Research paper (other academic)  

  • 大規模複雑構造物の溶接変形解析に向けた理想化陽解法FEMの拡張と実大構造物への適用 Reviewed

    生島 一樹, 前田 新太郎, 家下 輝也, 河原 充, 阿部 雄太, 木内 大貴, 柴原 正和

    溶接学会論文集 雑誌   37 ( 4 )   141 - 151   2019.10

    　More details

    Kind of work：Joint Work  

  • Numerical investigation on persistence of modified residual stresses due to shot peening Reviewed

    K. Ikushima, Y. Yamada, M. Shibahara, K. Akita, S. Nishikawa

    E-Journal of Advanced Maintenology 雑誌   11 ( 2 )   79 - 85   2019.09

    　More details

    Kind of work：Joint Work  

  • Numerical Analysis for Stress Behavior During Shot Peening Reviewed

    Kazuki IKUSHIMA, Yusuke YAMADA, Masakazu SHIABHARA and Koichi AKITA

    Mathematical Modelling of Weld Phenomena 雑誌   12   417 - 429   2019.08

    　More details

    Kind of work：Joint Work  

  • Prediction method of improved residual stress distribution by shot peening using large scale analysis method Reviewed

    Kazuki Ikushima, Masakazu Shibahara, Satoru Nishikawa, Takashi Furukawa, Koichi Akita, Hiroshi Suzuki, Satoshi Morooka

    E-Journal of Advanced Maintenance 雑誌   11 ( 2 )   79 - 85   2019.07

    　More details

    Kind of work：Joint Work  

  • A Technique for Preventing Solidification Cracking at the End Part of a Weld Joint in One-side Submerged Arc Welding

    Hiroyoshi YOKOTA, Masaharu KOMURA, Yasuo YAMASHITA, Masakazu SHIBAHARA

    72nd IIW Annual Assembly, IIW 雑誌   XII - 2340   2019.07

    　More details

    Kind of work：Joint Work  

  • Nonlinear Computational Welding Mechanics for Large Structures

    Kazuki Ikushima, Masakazu Shibahara

    JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME   141 ( 2 )   2019.04（ ISSN:0892-7219 ） （ eISSN:1528-896X ）

    　More details

    Publishing type：Research paper (scientific journal)  

    In the construction of thin plate steel structures, including ships, welding is widely used to join parts. Welding inevitably causes deformation in thin plate structures, which may cause various problems. In the present study, an analysis method is developed to realize the prediction of deformation during the construction of large-scale structures based on the thermal elastic plastic analysis method. The developed method uses the idealized explicit finite element method (IEFEM), which is a high-speed thermal elastic plastic analysis method, and an algebraic multigrid method (AMG) is also introduced to the IEFEM in order to realize an efficient analysis of large-scale thin plate structures. In order to investigate the analysis accuracy and the performance of the developed method, the developed method is applied to the analysis of deformation on the welding of a simple stiffened structure. The developed method is then applied to the prediction of welding deformation in the construction of a ship block. The obtained results indicate that the developed method has approximately the same analysis accuracy as the conventional method, and the computational speed of the developed method is dramatically faster than that of the conventional method. The developed method can analyze the welding deformation in the construction of the ship block structure which consists of more than 10 million degrees-of-freedom and is difficult to solve by the conventional method.

    DOI： 10.1115/1.4041395

  • Ultra-Large-Scale Nonlinear FE Analysis of Welding Mechanics

    Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES’19) 雑誌   2019.03

    　More details

    Kind of work：Joint Work  

  • Enhanced Idealized Explicit FEM for Predicting Welding Deformation in Complex Large-Scaled Structure and Application to the Real Structure

    IKUSHIMA Kazuki, MAEDA Shintaro, IESHITA Teruya, KAWAHARA Atsushi, ABE Yuuta, KIUCHI Hirotaka, SHIBAHARA Masakazu

    QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY   37 ( 4 )   141 - 151   2019（ ISSN:0288-4771 ） （ eISSN:2434-8252 ）

    　More details

    In the fabrication of steel structures, welding is widely utilized to join the materials. Due to the welding, distortions are inevitably generated, and these distortions may cause problems in accuracy or labor costs. In this research, to establish an analysis method which can predict the welding distortions in complex large-scale structures, we proposed a new analysis method based on the Idealized Explicit FEM. In the proposed method, an algebraic multigrid method was introduced to the Idealized Explicit FEM to achieve an efficient analysis in realistic structures. The proposed method was applied to the prediction of the welding distortion in the base structures of the construction machine. The number of welding passes was 28. The predicted and measured distortions were compared. As a result, it was demonstrated that the proposed method has a high analysis accuracy. The analysis finished within the realistic time within 35 hours. The influence of welding sequence on the deformation was also investigated by changing welding sequence. The result indicated that the welding sequence may have considerable effect on the welding distortion and is necessary to be investigated in advance of the production.

    DOI： 10.2207/qjjws.37.141

    DOI： 10.1299/transjsme.21-00301_references_DOI_AfIfI4PXIOwvdLe8jDLI4WfXKn7

    CiNii Article

    Other URL： https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19H02366/

  • Practical Measurement of Residual Stresses Using Contour Method

    Ikushima Kazuki, Shibahara Masakazu, Kawajiri Yoshitaka, Okimi Yui, Uchida Tomoki, Akita Koichi, Suzuki Hiroshi, Morooka Satoshi

    Journal of the Japan Society of Naval Architects and Ocean Engineers   30 ( 0 )   123 - 130   2019（ ISSN:1880-3717 ）

    　More details

    <p>In this research, the contour method was applied to measure the residual stress distribution of a bead-on-plate specimen. The measured residual stress distribution was compared with those measured by neutron diffraction method and calculated by thermal elastic plastic finite element analysis. As a result, it was found that the residual stress distribution obtained by these three methods are in good agreement. In addition, the equilibrium of reaction force on cut plane was considered in the contour method to measure residual stresses in asymmetric cutting which is assumed in the measurement of real structures. The proposed method was applied to the measurement of the residual stress in the multi-pass welded joint. The measured results indicated that the proposed method can measure the residual stress distribution in multi-pass welded joint in asymmetric test specimen.</p>

    DOI： 10.2534/jjasnaoe.30.123

    CiNii Article

  • Nonlinear Computational Welding Mechanics for Large Structures Reviewed

    Kazuki Ikushima and Masakazu Shibahara

    ASME 雑誌   141 ( 2 )   2018.10

    　More details

    Kind of work：Joint Work  

  • Ultimate strength analysis of structures considering effect of welding distortions and residual stresses

    K. Ikushima, T. Harada, M. Shibahara

    7th International Maritime Conference on DESIGN FOR SAFETY 雑誌   2018.09

    　More details

    Kind of work：Joint Work  

  • 原子炉冷却配管における溶接からピーニングそして実働状態までの全工程残留応力挙動評価～中性子応力測定と理想化陽解法FEMシミュレーション～

    秋田貢一、鈴木裕士、諸岡聡、ハルヨ ステファヌス、柴原正和、生島一樹、西川聡、古川敬

    材料学会 第51回Ｘ線材料強度に関するシンポジウム 雑誌   2018.07

    　More details

    Kind of work：Joint Work  

  • 大型円筒構造物の溶接変形に及ぼす拘束冶具および溶接順序の影響の検討

    小田和生，中谷光良，谷和彦，山田順也，柴原正和，河原充

    溶接構造シンポジウム2017 雑誌   83 - 86   2017.12

    　More details

    Kind of work：Joint Work  

  • ショットピーニングで付与した圧縮残留応力の持続性を予測するためのFEM解析手法の開発

    西川聡、古川敬、柴原正和、生島一樹、木谷悠二、山田祐介、秋田貢一、鈴木裕士、諸岡聡

    溶接・非破壊検査技術センター　技術レビュー 雑誌   13   29 - 34   2017.12

    　More details

    Kind of work：Joint Work  

  • サイドビード試験を用いた低放射化フェライト鋼F82Hのレーザ溶接部における凝固割れ感受性評価

    森裕章、前田新太郎、本藤裕佑、生島一樹、柴原正和

    溶接構造シンポジウム2017 雑誌   373 - 378   2017.12

    　More details

    Kind of work：Joint Work  

  • 建設機械構造物の溶接残留応力の評価

    藤永晃、高橋毅、山本光、柴原正和、望月正人

    溶接構造シンポジウム2017 雑誌   349 - 352   2017.12

    　More details

    Kind of work：Joint Work  

  • 多層溶接の溶接変形に関する簡易力学モデルの構築

    柴原正和、臼杵龍太、生島一樹

    溶接構造シンポジウム2017 雑誌   87 - 92   2017.12

    　More details

    Kind of work：Joint Work  

  • 大規模溶接熱弾塑性解析手法の実機適用

    生島一樹、柴原正和、河充、前田新太郎、桑原仁志、金武完明

    溶接構造シンポジウム2017 雑誌   101 - 108   2017.12

    　More details

    Kind of work：Joint Work  

  • 溶接継ぎ手の強度予測に向けた解析手法の構築

    生島一樹、川瀬充弘、松宮大樹、柴原正和、大畑充

    溶接構造シンポジウム2017 雑誌   5 - 12   2017.12

    　More details

    Kind of work：Joint Work  

  • 粒子法と有限要素法を用いたFSW力学解析手法の構築

    家下輝也、生島一樹、柴原正和、宮坂史和

    溶接構造シンポジウム2017 雑誌   169 - 176   2017.12

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMを用いた溶接座屈変形解析

    前田新太郎、生島一樹、柴原正和

    溶接構造シンポジウム2017 雑誌   93 - 100   2017.12

    　More details

    Kind of work：Joint Work  

  • コンター法を用いた残留応力測定

    河尻義貴、柴原正和、生島一樹、河原充、内田友樹、宇野新平、秋田貢一

    溶接構造シンポジウム2017 雑誌   341 - 348   2017.12

    　More details

    Kind of work：Joint Work  

  • ショットピーニングにおける圧縮残留応力の付与に関する数値解析的検討

    山田祐介、柴原正和、木谷悠二、生島一樹、西川聡、古川敬、秋田貢一、諸岡聡、鈴木裕士

    溶接構造シンポジウム2017 雑誌   325 - 332   2017.12

    　More details

    Kind of work：Joint Work  

  • 片面サブマージアーク溶接の継手終端部に生じる凝固割れの防止技術

    横田大和，幸村正晴，柴原正和，杉山大輔，山下泰生

    溶接構造シンポジウム2017 雑誌   379 - 382   2017.12

    　More details

    Kind of work：Joint Work  

  • 狭開先レーザ多層溶接における変形解析

    夏目糧平，山﨑洋輔，中谷光良，河原充，柴原正和

    溶接構造シンポジウム2017 雑誌   79 - 82   2017.12

    　More details

    Kind of work：Joint Work  

  • Numerical study on weld buckling distortion in thin plate

    Shintaro MAEDA , Kazuki IKUSHIMA and Masakazu SHIBAHARA

    International Seminar on Welding Science and Engineering 2017 (WSE2017) 雑誌   482 - 483   2017.10

    　More details

    Kind of work：Joint Work  

  • Numerical analysis of residual stress distribution after shot peening using large scale simulation

    Yuji KITANI, Kazuki IKUSHIMA, Masakazu Shibahara, Satoru Nishikawa,Takashi Furukawa, Koichi Akita, Hiroshi Suzuki and Satoshi Morooka

    International Seminar on Welding Science and Engineering 2017 (WSE2017) 雑誌   344 - 345   2017.10

    　More details

    Kind of work：Joint Work  

  • Mechanical study on solidification cracking during laser welding

    Yusuke YAMADA, Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA , and Hiroaki MORI

    International Seminar on Welding Science and Engineering 2017 (WSE2017) 雑誌   478 - 479   2017.10

    　More details

    Kind of work：Joint Work  

  • Investigation on fracture mode of spot weld joint simplified fracture analysis method

    Kazuki IKUSHIMA, Mitsuhiro KAWASE, Takahiro YANO, Ryohei NATSUME and Masakazu SHIBAHARA

    International Seminar on Welding Science and Engineering 2017 (WSE2017) 雑誌   480 - 481   2017.10

    　More details

    Kind of work：Joint Work  

  • Construct of Friction Stir Welding simulation method by Particle method and FEM

    Teruya IESHITA , Kazuki IKUSHIMA, Masakazu SHIBAHARA and Humikazu MIYASAKA

    International Seminar on Welding Science and Engineering 2017 (WSE2017) 雑誌   501 - 502   2017.10

    　More details

    Kind of work：Joint Work  

  • Prediction of Shot Peened Residual Stresses Using Large Scale Numerical Analysis

    Yuji KITANI, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    31st Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structure (TEAM2017) 雑誌   2017.09

    　More details

    Kind of work：Joint Work  

  • Large Deformation Thermal Elastic-Plastic Analysis of Thin-plate structure

    Shintaro MAEDA, Kazuki IKUSHIMA and Masakazu SHIBAHARA

    31st Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structure (TEAM2017) 雑誌   2017.09

    　More details

    Kind of work：Joint Work  

  • ショットピーニング時の残留応力緩和挙動に関する検討

    木谷悠二、柴原正和、生島一樹、山田祐介、 西川聡、古川敬、秋田貢一、鈴木裕士、諸岡聡

    日本保全学会第十四回学術講演会 雑誌   225 - 228   2017.08

    　More details

    Kind of work：Joint Work  

  • 応力改善工法で付与した圧縮残留応力の持続性評価－理想化陽解法FEM を用いたショットピーニング解析手法の検証および圧縮残留応力の持続性に関する検討（第3報）

    木谷悠二、柴原正和、生島一樹、山田祐介、 西川聡、古川敬、秋田貢一、鈴木裕士、諸岡聡

    日本保全学会第十四回学術講演会 雑誌   513 - 518   2017.08

    　More details

    Kind of work：Joint Work  

  • 応力改善工法で付与した圧縮残留応力の持続性評価－ショットピーニン グを施した溶接継手の熱サイクルおよび応力負荷による残留応力変化 （第2報）

    西川聡、古川敬、秋田貢一、鈴木裕士、諸岡聡、柴原正和、生島一樹、木谷悠二、山田祐介

    日本保全学会第十四回学術講演会 雑誌   507 - 512   2017.08

    　More details

    Kind of work：Joint Work  

  • 応力改善工法で付与した圧縮残留応力の持続性評価－理想化陽解法FEM を用いたショットピーニング解析手法の開発（第1報）

    山田祐介、柴原正和、生島一樹、木谷悠二、西川聡、 古川敬、秋田貢一、鈴木裕士、諸岡聡

    日本保全学会第十四回学術講演会 雑誌   499 - 506   2017.08

    　More details

    Kind of work：Joint Work  

  • 異材溶接配管継手の軸圧縮下残留応力挙動の評価

    木谷悠二、柴原正和、生島一樹、西川聡、古川敬、秋田貢一、鈴木裕士、諸岡聡、川崎卓郎、相澤一也、ハルヨ ステファヌス

    材料学会 第51回Ｘ線材料強度に関するシンポジウム 雑誌   54 - 57   2017.07

    　More details

    Kind of work：Joint Work  

  • Study on Fracture Mode of Spot Weld Joint using Continuum Damage Mechanics Model Reviewed

    Kazuki Ikushima, Takahiro Yano, Ryohei Natsume, Masakazu Shibahara, Mitsuru Ohata

    溶接学会論文集 雑誌   1   28s - 32s   2017.06

    　More details

    Kind of work：Joint Work  

  • Nonlinear computational welding mechanics for large scale structures

    Kazuki Ikushima, Yoshitaka Kawajiri, Masakazu Shibahara

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES’17) 雑誌   2017.06

    　More details

    Kind of work：Joint Work  

  • Large deformation analysis of thin plate structure welding

    Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES’17) 雑誌   2017.06

    　More details

    Kind of work：Joint Work  

  • 粒子法と有限要素法を用いたFSW力学解析手法の構築

    柴原正和

    2016年度大阪大学接合科学研究所共同研究報告書 雑誌   107 - 108   2017.06

    　More details

    Kind of work：Single Work  

  • Numerical investigation of persistence of modified residual stresses due to shot peening

    K. Ikushima, Y. Kitani, Y. Yamada, M. Shibahara, K. Akita, H. Suzuki, S. Morooka, S. Nishikawa, T. Furukawa

    The 70th Annual Assembly of the International Institute of Welding (IIW) 雑誌   Doc.X - 1887   2017.06

    　More details

    Kind of work：Joint Work  

  • In-situ Residual Stress Analysis during Thermal Cycle of a Dissimilar Weld Joint Using Neutron Diffraction and IEFEM Reviewed

    Koichi Akita, Masakazu Shibahara, Kazuki Ikushima, Satoru Nishikawa, Takashi Furukawa, Hiroshi Suzuki, Stefanus Harjo, Takuro Kawasaki, Vladimir Luzin

    溶接学会論文集 雑誌   1   112s - 116s   2017.06

    　More details

    Kind of work：Joint Work  

  • Study on shot peened residual stress distribution under cyclic loading by numerical analysis Reviewed

    Kazuki Ikushima, Yuji Kitani, Masakazu Shibahara, Satoru Nishikawa, Takashi Furukawa, Koichi Akita, Hiroshi Suzuki, Satoshi Morooka

    溶接学会論文集 雑誌   1   75s - 79s   2017.06

    　More details

    Kind of work：Joint Work  

  • Numerical Optimization of Welding Condition on T-joint Multi Passes Welding and Validation by a Welding Test Reviewed

    Toshiaki Saito, Daisuke Takakura, Masakazu Shibahara, Atsushi Kawahara, Kazuki Ikushima

    溶接学会論文集 雑誌   1   141s - 145s   2017.06

    　More details

    Kind of work：Joint Work  

  • Influence of various factors on welding distortion of thin-plate structures Reviewed

    Masakazu Shibahara, Takaaki Harada, Shintaro Maeda, Kazuki Ikushima

    溶接学会論文集 雑誌   1   146s - 150s   2017.06

    　More details

    Kind of work：Joint Work  

  • Evaluation of Solidification Crack Susceptibility in Laser Beam Welds of Reduced Activation Ferritic/martensitic Steel F82H

    Hiroaki Mori, Takaya Hitomi, Hideki Mitsunari, Masakazu Shibahara, Hideo Sakasegawa, Takanori Hirose, Hiroyasu Tanigawa

    Materials Science & Technology 2016 雑誌   2016.10

    　More details

    Kind of work：Joint Work  

  • Fracture Mechanics Analysis System to Evaluate Failure Mode of Spot Welded Joint

    Tatsuro ISHIZUKA, Hiroshi OKADA, Yasunori YUSA, Kouji CHIBA, Hidekazu MURAKAWA, Hisashi SERIZAWA, Masakazu SHIBAHARA, Satoyuki TANAKA

    Visual JW 2016 雑誌   1   243 - 244   2016.10

    　More details

    Kind of work：Joint Work  

  • Residual Stress Behavior of Dissimilar Weld Joint under Thermal Cycle Examined by Neutron Diffraction and Idealized Explicit FEM

    Koichi AKITA, Hiroshi SUZUKI, Satoshi MOROOKA, Stefanus HARJO, Takuro KAWASAKI, Vladimir LUZIN, Masakazu SHIBAHARA, Kazuki IKUSHIMA, Satoru NISHIKAWA, Takashi FURUKAWA

    Visual JW 2016 雑誌   1   267 - 268   2016.10

    　More details

    Kind of work：Joint Work  

  • Numerical Optimization of Welding Condition on T-joint Multi Passes Welding and Validation by a Welding Test

    Toshiaki Saito, Daisuke Takakura, Masakazu Shibahara, Atsushi Kawahara, Kazuki Ikushima

    Visual JW 2016 雑誌   1   229 - 230   2016.10

    　More details

    Kind of work：Joint Work  

  • Study on influence of various factors on welding distortion of thin-plate structures

    Takaaki Harada, Shintaro Maeda, Kazuki Ikushima, Masakazu Shibahara

    Visual JW 2016 雑誌   1   239 - 240   2016.10

    　More details

    Kind of work：Joint Work  

  • Study on Fracture Mode of Spot Weld Joint using Continuum Damage Mechanics Model

    Kazuki Ikushima, Takahiro Yano, Ryohei Natsume, Masakazu Shibahara, Mitsuru Ohata

    Visual JW 2016 雑誌   1   263 - 264   2016.10

    　More details

    Kind of work：Joint Work  

  • Study on residual stress distribution on shot peening process using large scale numerical analysis

    Kazuki Ikushima, Yuji Kitani, Masakazu Shibahara, Satoru Nishikawa, Koichi Akita

    Visual JW 2016 雑誌   1   241 - 242   2016.10

    　More details

    Kind of work：Joint Work  

  • Numerical analysis of residual stress distribution on peening process

    Kazuki Ikushima, Masakazu Shibahara, Koichi Akita, Satoru Nishikawa, Takashi Furukawa

    69th IIW Annual Assembly, Commission X 雑誌   X - 1852   2016.07

    　More details

    Kind of work：Joint Work  

  • ショットピーニング時に発生する溶接残留応力のFEM解析

    柴原正和、生島一樹、北村徳識、秋田貢一、西川聡、古川敬

    材料学会 第50回Ｘ線材料強度に関するシンポジウム 雑誌   52 - 53   2016.07

    　More details

    Kind of work：Joint Work  

  • Numerical analysis of residual stress distribution on peening process

    Kazuki Ikushima, Masakazu Shibahara, Koichi Akita, Satoru Nishikawa, Takashi Furukawa

    日本溶接会議第10委員会(JIW-X), 溶接構造研究委員会,日本溶接協会FTE委員会合同委員会 雑誌   1 - 8   2016.06

    　More details

    Kind of work：Joint Work  

  • NONLINEAR COMPUTATIONAL WELDING MECHANICS FOR LARGE STRUCTURES Reviewed

    K.Ikushima, M.Shibahara

    Proceedings of the ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2016) 雑誌   54313(1 - 9)   2016.06

    　More details

    Kind of work：Joint Work  

  • Enhanced large-scale analysis method and its application to multiaxial pipe weld Reviewed

    Kazuki Ikushima, Toshizo Minamino, Atsushi Kawahara, Hisato Yuto, Akihiro Nagai, Kazuhiko Tani, Tomoaki Tsuji, Junnya Yamada, Mitsuyoshi Nakatani, Masakazu Shibahara

    Welding in the World 雑誌   60   915 - 929   2016.05

    　More details

    Kind of work：Joint Work  

  • Fluid-structure Interaction analysis by interface tracking method using background mesh Reviewed

    Kazuki Ikushima, Masakazu Shibahara, Torgeir Moan

    Proceedings of 3rd International Conference on Violent Flows 雑誌   2016.03

    　More details

    Kind of work：Joint Work  

  • Fluid-Structure Interaction Analysis by Interface Tracking Method Using Background Mesh

    K. Ikushima, M. Shibahara, T. Moan

    3rd International Conference on Violent Flows 雑誌   2016.03

    　More details

    Kind of work：Joint Work  

  • 3-Dimensional Coupling FE Analysis of Resitance Spot Welding Reviewed

    K. Ikushima, T. Yano, R. Natsume, M. Shibahara

    Mathematical Modelling of Weld Phenomena 雑誌   11   2016.01

    　More details

    Kind of work：Joint Work  

  • Large-scale Residual Stress Analysis of Multi-pass Welded Pipe Joint Using Idealized Explicit FEM Accelerated by a GPU Reviewed

    Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Mathematical Modelling of Weld Phenomena 雑誌   11   2016.01

    　More details

    Kind of work：Joint Work  

  • Analysis of Welding Deformation on Construction of Large Thin Plate Structure by Idealized Explicit FEM Using Multigrid Method Reviewed

    K. Ikushima, T. Harada, M. Shibahara

    Mathematical Modelling of Weld Phenomena 雑誌   11   2016.01

    　More details

    Kind of work：Joint Work  

  • Evaluation of Center-line Crack Susceptibility in Laser Beam Welds of Reduced Activation Ferritic/　Martensitic Steel F82H by Side-bead Test Reviewed

    Takeya HITOMI, Tatsuya HAMA, Hiroaki MORI, Satoshi KON, Satoki KOGITA and Masakazu SHIBAHARA

    Proceedings of LAMP2015 -the 7th International Congress on Laser Advanced Materials Processing 雑誌   2015.11

    　More details

    Kind of work：Joint Work  

  • The study of groove shape optimization on T-joint weld

    Toshiaki SAITO, Masakazu SHIBAHARA, Kazuki IKUSHIMA, Atsushi KAWAHARA, Yoshisato KITAMURA, Daisuke TTAKAKURA

    International Seminar on Welding Science and Engineering 2015 (WSE2015) 雑誌   2015.09

    　More details

    Kind of work：Joint Work  

  • Effect of Various Factors on Solidification Crack Under FCB Welding

    Masakazu SHIBAHARA, Masayuki YAMAMOTO, Kazuki IKUSHIMA, Satoshi KON, Daisuke SUGIYAMA, Yasuo YAMASHITA, Masaharu KOHMURA

    International Seminar on Welding Science and Engineering 2015 (WSE2015) 雑誌   2015.09

    　More details

    Kind of work：Joint Work  

  • Study on Nugget Shapes on Spot Welding Computed by Idealized Explicie FEM

    Kazuki IKUSHIMA, Takahiro YANO, Ryohei NATSUME

    International Seminar on Welding Science and Engineering 2015 (WSE2015) 雑誌   2015.09

    　More details

    Kind of work：Joint Work  

  • Analysis of Welding Deformation Under 1st Pass Welding Considering Root Gap and Tack Welds

    Koji IWATA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    International Seminar on Welding Science and Engineering 2015 (WSE2015) 雑誌   2015.09

    　More details

    Kind of work：Joint Work  

  • Residual stress analysis of multi-pass welded joint

    K. Ikushima, M. Shibahara

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES'15) 雑誌   2015.07

    　More details

    Kind of work：Joint Work  

  • Large Scale Non-Linear Analysis of Residual Stresses in Multi-Pass Pipe Welds by Idealized Explicit FEM Reviewed

    Kazuki IKUSHIMA,　Masakazu SHIBAHARA

    Welding in the World 雑誌   59 ( 6 )   839 - 850   2015.07

    　More details

    Kind of work：Joint Work  

  • Analysis Results of Residual Stress for Multi-axial Pipe Structure

    Kazuki Ikushima, Toshizo Minamino, Atsushi Kawahara, Masakazu Shibahara, Hisato Yuto, Akihiro Nagai, Kazuhiko Tani, Tomoaki Tsuji, Junya Yamada, Mitsuyoshi Nakatani

    68th IIW Annual Assembly, Commission X 雑誌   X - 1825   2015.07

    　More details

    Kind of work：Joint Work  

  • 3-dimensional coupling numerical analysis of spot welding

    R. Natsume, K. Ikushima, M. Shibahara

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES'15) 雑誌   2015.07

    　More details

    Kind of work：Joint Work  

  • Development of idealized explicit FEM using GPU parallelization and its application to large-scale analysis of residual stress of multi-pass welded pipe joint Reviewed

    Kazuki IKUSHIMA,　Shinsuke ITOH, Masakazu SHIBAHARA,

    Welding in the World 雑誌   59 ( 4 )   589 - 595   2015.06

    　More details

    Kind of work：Joint Work  

  • Study on Solidification Crack Under High Speed Narrow Gap Welding with Tandemn Torches Reviewed

    Masakazu SHIBAHARA, Kazuki IKUSHIMA, Takaaki HARADA, Fumiaki KIMURA and Takuya MORIMOTO

    溶接学会論文集 雑誌   33 ( 2 )   190s - 194s   2015.06

    　More details

    Kind of work：Joint Work  

  • Study on Deformation Behavior of Multi-pass Weld Joints for I-girder Bridge by Using Idealized Explicit FEM Reviewed

    TAKABA Shinji, SHIBAHARA Masakazu, MOCHIZUKI Masahito

    溶接学会論文集 雑誌   33 ( 2 )   2015.06

    　More details

    Kind of work：Joint Work  

  • Large-Scale Welding Deformation Analysis of Ship Structure by Idealized Explicit FEM Using Multigrid Method Using Multigrid Method Reviewed

    K. Ikushima, K. Kaigaishi, M. Shibahara

    The Proceedings of the 24th International Offshore and Polar Engineering Conference 雑誌   263 - 270   2015.06

    　More details

    Kind of work：Joint Work  

  • Study on Solidification Cracking Under High-speed Narrow Gap Welding with Tandem Torches Reviewed

    M. Shibahara, K. Ikushima, T. Harada, F. Kimura, T. Morimoto

    The Proceedings of the 24th International Offshore and Polar Engineering Conference 雑誌   271 - 278   2015.06

    　More details

    Kind of work：Joint Work  

  • Analysis Results of Residual Stress for Multi-axial Pipe Structure

    Kazuki Ikushima, Toshizo Minamino, Atsushi Kawahara, Masakazu Shibahara, Hisato Yuto, Akihiro Nagai, Kazuhiko Tani, Tomoaki Tsuji, Junya Yamada, Mitsuyoshi Nakatani

    日本溶接会議第10委員会(JIW-X), 溶接構造研究委員会,日本溶接協会FTE委員会合同委員会 雑誌   1 - 16   2015.06

    　More details

    Kind of work：Joint Work  

  • Development of 3-Dimensional Coupling Analysis Method for Spot Welding by Idealized Explicit FEM Reviewed

    Kazuki IKUSHIMA, Masakazu SHIBAHARA

    溶接学会論文集 雑誌   33 ( 2 )   88s - 92s   2015.06

    　More details

    Kind of work：Joint Work  

  • Study on Welding Distortion of Stiffened Thin Plate Structure Using Idealized Explicit FEM Reviewed

    Kazuki IKUSHIMA, Masakazu SHIBAHARA

    溶接学会論文集 雑誌   33 ( 2 )   175s - 179s   2015.06

    　More details

    Kind of work：Joint Work  

  • Effects of Strain and Cotents of Impurity Elements on Center-Line Crack Susceptibility in Laser Beam Welds of Typw 316L Stainless Steel Reviewed

    Hideki MITSUNARI, Hiroaki MORI, Satoshi KON, Masakazu SHIBAHARA

    溶接学会論文集 雑誌   33 ( 2 )   1s - 5s   2015.04

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法 理想化陽解法 理想化陽解法FEMによる円筒多層溶接継手の3次元移動熱源残留応力解析 Reviewed

    生島一樹、柴原正和、西川聡、伊藤真介

    溶接学会論文集 雑誌   69 - 81   2015.03

    　More details

    Kind of work：Joint Work  

  • 反復サブストラクチャー法を導入した理想化陽解FEMによる大規模溶接変形残留応力解析 Reviewed

    生島一樹、西川聡、柴原正和

    溶接学会論文集 雑誌   223 - 234   2015.01

    　More details

    Kind of work：Joint Work  

  • 溶接力学シミュレーション研究会 活動報告

    村川英一、柴原正和、芹澤 久、津村秀一、中谷光良、山田順也、鷹羽新二、永木勇人、中谷祐二郎、只野智史、上谷佳祐 、麻 寧緒、福本学

    溶接構造シンポジウム2014 雑誌   S13 - S16   2014.12

    　More details

    Kind of work：Joint Work  

  • 大型円筒構造物多層溶接時の溶接変形に及ぼす拘束治具の影響

    山田順也, 山里久仁彦, 谷 和彦, 中谷光良, 河原 充, 生島一樹, 柴原正和

    溶接構造シンポジウム2014 雑誌   223 - 226   2014.12

    　More details

    Kind of work：Joint Work  

  • 大口径リング長手多層溶接時の溶接変形に及ぼす溶接方法の影響

    山田順也, 山里久仁彦 , 山崎洋輔, 中谷光良, 河原 充, 生島一樹, 柴原正和

    溶接構造シンポジウム2014 雑誌   53 - 56   2014.12

    　More details

    Kind of work：Joint Work  

  • 溶接順序を考慮した開先形状の最適化に関する研究

    齋藤俊明、高倉大典、柴原正和、生島一樹、河原充

    溶接構造シンポジウム2014 雑誌   57 - 64   2014.12

    　More details

    Kind of work：Joint Work  

  • 狭開先2 トーチ高速円周MAG溶接時における凝固割れに関する力学的検討

    柴原正和, 原田貴明, 生島一樹, 森本拓世, 木村文映

    溶接構造シンポジウム2014 雑誌   239 - 246   2014.12

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMによる3次元スポット溶接解析

    夏目糧平、生島一樹、重政拓海、柴原正和、千葉晃司

    溶接構造シンポジウム2014 雑誌   17 - 24   2014.12

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEM を用いた建機構造体モデルの溶接変形解析

    生島一樹, 竹内啓洋,貝ヶ石康平, 柴原正和, 阿部雄太, 木内大貴

    溶接構造シンポジウム2014 雑誌   217 - 224   2014.12

    　More details

    Kind of work：Joint Work  

  • FCB溶接時における端部割れにおよぼす諸因子の影響に関する力学的検討

    柴原正和, 今 智史, 河原 充, 生島一樹, 幸村正晴, 杉山大輔, 山下康生

    溶接構造シンポジウム2014 雑誌   247 - 254   2014.12

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMを用いた異材円筒継手の残留応力解析

    柴原 正和, 生島一樹, 伊藤真介, 西川 聡

    溶接構造シンポジウム2014 雑誌   277 - 284   2014.12

    　More details

    Kind of work：Joint Work  

  • マルチグリッド法を導入した理想化陽解法FEMによる大規模薄板構造物の溶接変形解析

    生島一樹、柴原正和

    溶接構造シンポジウム2014 雑誌   209 - 216   2014.12

    　More details

    Kind of work：Joint Work  

  • 重合メッシュを用いた理想化陽解法FEMによる溶接変形・残留応力解析

    生島一樹、柴原正和

    溶接構造シンポジウム2014 雑誌   301 - 308   2014.12

    　More details

    Kind of work：Joint Work  

  • 鋼橋多層盛溶接継手における溶接変形解析

    鷹羽新二、柴原正和, 望月正人

    溶接構造シンポジウム2014 雑誌   201 - 208   2014.12

    　More details

    Kind of work：Joint Work  

  • オーバーパックの大規模多層溶接解析

    高倉大典, 川上 進, 生島一樹, 柴原正和, 朝野英一

    溶接構造シンポジウム2014 雑誌   289 - 292   2014.12

    　More details

    Kind of work：Joint Work  

  • Effects of Strain and Cotents of Impurity Elements on Center-Line Crack Susceptibility in Laser Beam Welds of Typw 316L Stainless Steel

    Hideki MITSUNARI, Hiroaki MORI, Satoshi KON, Masakazu SHIBAHARA

    Visual JW 2014 雑誌   142 - 143   2014.11

    　More details

    Kind of work：Joint Work  

  • Study on Nugget Shapes under Spot Welding Using 3-Dimensional Coupling Analysis

    Ryohei NATSUME, Takumi SHIGEMASA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Visual JW 2014 雑誌   303 - 304   2014.11

    　More details

    Kind of work：Joint Work  

  • Study on Welding Distortion of Stiffened Thin Plate Structure Using Idealized Explicit FEM

    Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Visual JW 2014 雑誌   301 - 302   2014.11

    　More details

    Kind of work：Joint Work  

  • Development of 3-Dimensional Coupling Analysis Method for Spot Welding by Idealized Explicit FEM

    Kazuki IKUSHIMA, Masakazu SHIBAHARA

    Visual JW 2014 雑誌   140 - 141   2014.11

    　More details

    Kind of work：Joint Work  

  • Study on Solidification Crack Under High Speed Narrow Gap Welding with Tandemn Torches

    Masakazu SHIBAHARA, Takaaki HARADA, Takuya MORIMOTO and Fumiaki KIMURA

    Visual JW 2014 雑誌   209 - 210   2014.11

    　More details

    Kind of work：Joint Work  

  • Study on Deformation Behavior of Multi-pass Weld Joints for I-girder Bridge by Using Idealized Explicit FEM

    TAKABA Shinji, SHIBAHARA Masakazu, MOCHIZUKI Masahito

    Visual JW 2014 雑誌   148 - 149   2014.11

    　More details

    Kind of work：Joint Work  

  • Large Scale Non-Linear Analysis of Residual Stresses in Multi-Pass Pipe Welds by Idealized Explicit FEM

    K.Ikushima, M.Shibahara

    67th IIW Annual Assembly, Commission X 雑誌   X - 1776   2014.07

    　More details

    Kind of work：Joint Work  

  • Prediction of Residual Stresses in Multi-pass Welded Joint using Idealized Explicit FEM accelerater by a GPU Reviewed

    Kazuki Ikushima, Masakazu Shibahara

    Computational Material Science 雑誌   93   62 - 67   2014.07

    　More details

    Kind of work：Joint Work  

  • Large Scale Non-Linear Analysis of Residual Stresses in Multi-Pass Pipe Welds by Idealized Explicit FEM

    K.Ikushima, M.Shibahara

    JIW-X委員会, 溶接構造研究委員会, FTE委員会合同委員会 雑誌   X - 1776   2014.06

    　More details

    Kind of work：Joint Work  

  • Study on Residual Stress in Multi-pass Welded Joint Using Idealized Explicit FEM Reviewed

    K.Ikushima, T.Okada, A.Takeuchi, S.Itoh, S.Nishikawa, M.Shibahara

    International Joint Symposium on Joining and Welding (IJS-JW 2013) 雑誌   2013.11

    　More details

    Kind of work：Joint Work  

  • Three Dimensional In-situ Measurement System for Welding Deformation Using Digital Cameras Reviewed

    M.Shibahara, M.Hamada, K.Ikushima, S.Itoh

    International Joint Symposium on Joining and Welding (IJS-JW 2013) 雑誌   2013.11

    　More details

    Kind of work：Joint Work  

  • Development of　High-speed Analytical Method for Welding Mechanics Using Idealized Explicit FEM Accelerated by a GPU Reviewed

    K.Ikushima, A.Kawahara, M.Shibahara

    International Joint Symposium on Joining and Welding (IJS-JW 2013) 雑誌   2013.11

    　More details

    Kind of work：Joint Work  

  • Influence of Tack Welds on Welding Deformation during Butt Welding

    M.Shibahara, M.Hamada, S.Kon, K.Ikushima

    International Seminar on Welding Science and Engineering 2013 (WSE2013), Weihai 雑誌   231 - 232   2013.10

    　More details

    Kind of work：Joint Work  

  • Large-scale Analysis of Welding Residual Stress Problem by Idealized Explicit FEM Using Iterative Substructure Method

    K.Ikushima, M.Shibahara, H.Murakawa

    International Seminar on Welding Science and Engineering 2013 (WSE2013) 雑誌   2013.10

    　More details

    Kind of work：Joint Work  

  • Numerical Analysis of Welding Deformation for Thin Plate Welded Structures Using Idealized Explicit FEM

    K.Ikushima, M.Yamamoto, A.Kawahara, M.Shibahara

    International Seminar on Welding Science and Engineering 2013 (WSE2013) 雑誌   2013.10

    　More details

    Kind of work：Joint Work  

  • Study on Residual Stress in Multi-pass Welded Joint of Pipes Using Idealized Explicit FEM

    M.Shibahara, A.Takeuchi, T.Okada, S.Itoh, S.Nishikawa, K.Ikushima

    International Seminar on Welding Science and Engineering 2013 (WSE2013) 雑誌   2013.10

    　More details

    Kind of work：Joint Work  

  • Heat Conduction Analysis of Welding for Large-scale Structure Using Idealized Explicit FEM

    K.Ikushima, N.Tahara, M.Shibahara

    International Seminar on Welding Science and Engineering 2013 (WSE2013) 雑誌   2013.10

    　More details

    Kind of work：Joint Work  

  • Influence of Tack Welds on Welding Deformation during Butt Welding

    M.Shibahara, M.Hamada, K.Satoshi, K.Ikushima

    International Seminar on Welding Science and Engineering 2013 (WSE2013) 雑誌   2013.10

    　More details

    Kind of work：Joint Work  

  • Large-scale Analysis of Welding Residual Stress Problem by Idealized Explicit FEM Using Iterative Substructure Method

    K.Ikushima, M.Shibahara, H.Murakawa

    International Seminar on Welding Science and Engineering 2013 (WSE2013), Weihai 雑誌   127 - 130   2013.10

    　More details

    Kind of work：Joint Work  

  • Numerical Analysis of Welding Deformation for Thin Plate Welded Structures Using Idealized Explicit FEM

    K.Ikushima, M.Yamamoto, A.Kawahara, M.Shibahara

    International Seminar on Welding Science and Engineering 2013 (WSE2013), Weihai 雑誌   239 - 242   2013.10

    　More details

    Kind of work：Joint Work  

  • Study on Residual Stress in Multi-pass Welded Joint of Pipes Using Idealized Explicit FEM

    M.Shibahara, A.Takeuchi, T.Okada, S.Itoh, S.Nishikawa, K.Ikushima

    International Seminar on Welding Science and Engineering 2013 (WSE2013), Weihai 雑誌   237 - 238   2013.10

    　More details

    Kind of work：Joint Work  

  • Heat Conduction Analysis of Welding for Large-scale Structure Using Idealized Explicit FEM

    K.Ikushima, N.Tahara, M.Shibahara

    International Seminar on Welding Science and Engineering 2013 (WSE2013), Weihai 雑誌   233 - 236   2013.10

    　More details

    Kind of work：Joint Work  

  • Development of Idealized Explicit FEM Using GPU Parallelization and Its Application to Large-scale Analysis of Residual Stress of Welded Multilayer Pipes

    Kazuki IKUSHIMA,　Shinsuke ITOH, Masakazu SHIBAHARA,

    JIW-X委員会, 溶接構造研究委員会, FTE委員会合同委員会 雑誌   X - 1741   2013.09

    　More details

    Kind of work：Joint Work  

  • Development of Idealized Explicit FEM Using GPU Parallelization and Its Application to Large-scale Analysis of Residual Stress of Welded Multilayer Pipes

    Kazuki IKUSHIMA,　Shinsuke ITOH, Masakazu SHIBAHARA

    66th IIW Annual Assembly, Commission X 雑誌   X - 1741   2013.09

    　More details

    Kind of work：Joint Work  

  • Development of High-speed Analytical Method for Welding Mechanics Using Idealized Explicit FEM

    K.Ikushima, T,Shigemasa, A.Kawahara, M.Shibahara

    27th Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structure (TEAM2013), Keelung 雑誌   703 - 710   2013.09

    　More details

    Kind of work：Joint Work  

  • Development of Idealized Explicit FEM Using GPU Parallelization and Its Application to Large-scale Analysis of Residual Stress of Welded Multilayer Pipes

    Kazuki IKUSHIMA,　Shinsuke ITOH, Masakazu SHIBAHARA,

    66th IIW Annual Assembly, Commission X 雑誌   X - 1741   2013.09

    　More details

    Kind of work：Joint Work  

  • Development of High-speed Analytical Method for Welding Mechanics Using Idealized Explicit FEM

    K.Ikushima, T,Shigemasa, A.Kawahara, M.Shibahara

    27th Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structure (TEAM2013), Keelung 雑誌   703 - 710   2013.09

    　More details

    Kind of work：Joint Work  

  • Prediction of Residual Stresses in Multi-pass Welded Joint Using Idealized Explicit FEM Accelerated by a GPU Reviewed

    Kazuki Ikushima, Shinsuke Itoh, Masakazu Shibahara

    Computational Material Science 雑誌   2013.08

    　More details

    Kind of work：Joint Work  

  • Development of Idealized Explicit FEM Using GPU Parallelization and Its Application to Large-scale Analysis of Residual Stress of Welded Multilayer Pipes Reviewed

    Kazuki Ikushima, Shinsuke Itoh, Masakazu Shibahara

    Welding in the World 雑誌   2013.08

    　More details

    Kind of work：Joint Work  

  • Numerical Analysis of Welding Deformation for Large-Scale Structure Reviewed

    Kazuki Ikushima, Shinsuke Itoh, Masakazu Shibahara

    溶接学会論文集 雑誌   2013.08

    　More details

    Kind of work：Joint Work  

  • Heat Conduction Analysis of Welding Using Idealized Explicit FEM Reviewed

    Kazuki Ikushima, Takumi Shigemasa, Shinsuke Itoh, Masakazu Shibahara

    溶接学会論文集 雑誌   2013.08

    　More details

    Kind of work：Joint Work  

  • Development of Idealized Explicit FEM Using GPU Parallelization and Its Application to Large-scale Analysis of Residual Stress of Welded Multilayer Pipes

    Kazuki IKUSHIMA,　Shinsuke ITOH, Masakazu SHIBAHARA

    JIW-X委員会, 溶接構造研究委員会, FTE委員会合同委員会 雑誌   X - 1741   2013.07

    　More details

    Kind of work：Joint Work  

  • Time-history Measurement of Welding Deformation Using Digital Image Correlation Technique Reviewed

    Masakazu SHIBAHARA,　Kazuki IKUSHIMA,　 Shinsuke ITOH, Toichi Fukasawa

    International Journal of Offshore and Polar Engineering 雑誌   2013.07

    　More details

    Kind of work：Joint Work  

  • GPUを用いた並列化理想化陽解法FEMの開発 Reviewed

    生島一樹、柴原正和、伊藤真介

    溶接学会論文集 雑誌   2013.03

    　More details

    Kind of work：Joint Work  

  • Heat Conduction Analysis of Welding Using Idealized Explicit FEM

    Kazuki Ikushima, Takumi Shigemasa, Shinsuke Itoh, Masakazu Shibahara

    Visual JW 2012 雑誌   315 - 316   2012.11

    　More details

    Kind of work：Joint Work  

  • Development of Structural Integrity Analysis System for welded Structures

    Hiroshi OKADA, Satoyuki TANAKA, Toyoyasu NIKSHIKAWA, Kota SUGAWARA, Hidekazu MURAKAWA, Masakazu SHIBAHARA, Shinsuke ITOH, Hisashi SERIZAWA

    Visual JW 2012 雑誌   21 - 22   2012.11

    　More details

    Kind of work：Joint Work  

  • Prediction of Welding Deformation of Multiple-Pipe Components

    Shinsuke Itoh, Masakazu Shibahara, Masahito Mochizuki

    Visual JW 2012 雑誌   93 - 94   2012.11

    　More details

    Kind of work：Joint Work  

  • Study on Prevention Method of the Welding Distortion in Large Welded Structures

    Junya Yamada, Takeshi Itchi, Kazuhiko Tani, Mitsuyoshi Nakatani, Shinsuke Itoh, Masakazu Shibahara

    Visual JW 2012 雑誌   106 - 107   2012.11

    　More details

    Kind of work：Joint Work  

  • Numerical Analysis of Welding Deformation for Large-Scale Structure

    Kazuki Ikushima, Shinsuke Itoh, Masakazu Shibahara

    Visual JW 2012 雑誌   95 - 96   2012.11

    　More details

    Kind of work：Joint Work  

  • Development of Ultra Large Scale Computation for Transient Welding Deformation and Stress Using Idealized Explicit FEM Accelerated by GPU Reviewed

    Kazuki IKUSHIMA, Shinsuke ITOH, Masakazu SHIBAHARA

    ASME 2012 Pressure Vessels & Piping Conference (PVP2012) 雑誌   PVP2012 - 78354   2012.07

    　More details

    Kind of work：Joint Work  

  • Prediction of Residual Stress in Multi-pass Welded Joint Using Idealized Explicit FEM Reviewed

    Masakazu SHIBAHARA, Shinsuke ITOH, Takashi OKADA, Kazuki IKUSHIMA, Satoru Nishikawa

    ASME 2012 Pressure Vessels & Piping Conference (PVP2012) 雑誌   PVP2012 - 78357   2012.07

    　More details

    Kind of work：Joint Work  

  • Large-scale Computation for Welding Mechanics Using Idealized Explicit FEM Accelerated by a GPU Reviewed

    Kazuki IKUSHIMA, Shinsuke ITOH, Masakazu SHIBAHARA

    The Proceedings of the 21th International Offshore and Polar Engineering Conference 雑誌   4   244 - 251   2012.06

    　More details

    Kind of work：Joint Work  

  • Development of 3-Dimensional Welding Deformation Measurement Using Digital Cameras Reviewed

    Masakazu SHIBAHARA , Masaki HAMADA, Shinsuke ITOH

    International Conference on Maritime Technology (ICMT2012) 雑誌   265 - 273   2012.06

    　More details

    Kind of work：Joint Work  

  • Analysis of Welding Deformation for Thin Plate Welded Structures Using Idealized Explicit FEM Reviewed

    Takumi SHIGEMASA, Kazuki IKUSHIMA, Shinsuke ITOH, Masakazu SHIBAHARA

    International Conference on Maritime Technology (ICMT2012) 雑誌   245 - 249   2012.06

    　More details

    Kind of work：Joint Work  

  • FE Analysis of Hot Cracking in Welded Pipe Structure Reviewed

    Masakazu SHIBAHARA, Takuya IWAMOTO, Kazuhiro OGAWA, Hidekazu MURAKAWA

    The Proceedings of the 21th International Offshore and Polar Engineering Conference 雑誌   4   224 - 231   2012.06

    　More details

    Kind of work：Joint Work  

  • Measurement of Welding Deformation Based on Stereo Imaging Technique Reviewed

    Masakazu SHIBAHARA, Toshiki YAGI, Shinsuke ITOH

    The Proceedings of the 21th International Offshore and Polar Engineering Conference 雑誌   4   258 - 265   2012.06

    　More details

    Kind of work：Joint Work  

  • Heat Conduction Analysis of Welding Moving Heat Source Problem Using Idealized Explicit FEM Reviewed

    Kazuki IKUSHIMA, Takashi OKADA, Shinsuke ITOH, Masakazu SHIBAHARA

    The Proceedings of the 21th International Offshore and Polar Engineering Conference 雑誌   4   232 - 237   2012.06

    　More details

    Kind of work：Joint Work  

  • Investigation of Factors Influencing Welding Deformation of Ship Block by Inherent Strain Analysis Using Idealized Explicit FEM Reviewed

    M. Hata, S. Itoh, T. Sugihiro, Y. Yamashita, A. Kamio, M. Shibahara, and M. Mochizuki

    Journal of Physics, Conference Series 雑誌   379 ( 1 )   2012.04

    　More details

    Kind of work：Joint Work  

  • Measurement of In-situ Measurement System for Welding Deformation Using Digital Camera Reviewed

    Masakazu SHIBAHARA, Kazuki IKUSHIMA, Shinsuke ITOH

    Journal of Science and Technology of Welding and Joining 雑誌   17 ( 6 )   511 - 517   2012.04

    　More details

    Kind of work：Joint Work  

  • Investigation on Twisting Distortion of Thin Plate Stiffened Structure under Welding Reviewed

    Jiangchao Wang, Masakazu Shibahara, Xudong Zhang, Hidekazu Murakawa

    Journal of Materials Processing Technology 雑誌   212 ( 8 )   1705 - 1715   2012.04

    　More details

    Kind of work：Joint Work  

  • Measurement of In-situ Measurement System for 3D Welding Deformation Using Digital Camera

    Masakazu SHIBAHARA, Toshiki YAGI, Shinsuke ITOH

    TRANSACTIONS OF JWRI 雑誌   95 - 96   2012.03

    　More details

    Kind of work：Joint Work  

  • Residual Stress Analysis of Multi-pass Welding Using Idealized Explicit FEM with GPU

    Takashi OKADA, Kazuki IKUSHIMA, Shinsuke ITOH, Masakazu SHIBAHARA, Satoru NISHIKAWA

    TRANSACTIONS OF JWRI 雑誌   93 - 94   2012.03

    　More details

    Kind of work：Joint Work  

  • Ultra Large Scale FE Computation Using Idealized Explicit FEM Accelerated by GPU

    Kazuki IKUSHIMA, Shinsuke ITOH, Masakazu SHIBAHARA, Ninshu MA

    TRANSACTIONS OF JWRI 雑誌   91 - 92   2012.03

    　More details

    Kind of work：Joint Work  

  • Image measurement of fillet welding distortion of pipe joint in two-phase flow separator

    Shinsuke ITOH, Masakazu SHIBAHARA, Masahito MOCHIZUKI

    TRANSACTIONS OF JWRI 雑誌   99 - 100   2012.03

    　More details

    Kind of work：Joint Work  

  • Numerical Analysis of Hot Cracking in Welded Pipe Structure

    Masakazu SHIBAHARA, Takuya IWAMOTO, Takahiro OSUKI, Kazuhiro OGAWA, Hisashi SERIZAWA, Hidekazu MURAKAWA

    TRANSACTIONS OF JWRI 雑誌   97 - 98   2012.03

    　More details

    Kind of work：Joint Work  

  • GPUを用いた理想化陽解法FEMによる多層溶接時における残留応力の解析

    柴原正和，岡田崇志，生島一樹，伊藤真介，西川聡

    溶接構造シンポジウム2011 雑誌   143 - 150   2011.11

    　More details

    Kind of work：Joint Work  

  • Residual Stress Analysis of Multi-pass Welding Using Idealized Explicit FEM with GPU

    Takashi OKADA, Kazuki IKUSHIMA, Shinsuke ITOH, Masakazu SHIBAHARA, Satoru NISHIKAWA

    International Seminar on Welding Science and Engineering（WSE2011) & CCWS Seminar 2011 雑誌   139 - 140   2011.11

    　More details

    Kind of work：Joint Work  

  • Ultra Large Scale FE Computation Using Idealized Explicit FEM Accelerated by GPU

    Kazuki IKUSHIMA, Shinsuke ITOH, Masakazu SHIBAHARA, Ninshu MA

    International Seminar on Welding Science and Engineering（WSE2011) & CCWS Seminar 2011 雑誌   137 - 138   2011.11

    　More details

    Kind of work：Joint Work  

  • Image measurement of fillet welding distortion of pipe joint in two-phase flow separator

    Shinsuke ITOH, Masakazu SHIBAHARA, Masahito MOCHIZUKI

    International Seminar on Welding Science and Engineering（WSE2011) & CCWS Seminar 2011 雑誌   57 - 58   2011.11

    　More details

    Kind of work：Joint Work  

  • Numerical Analysis of Hot Cracking in Welded Pipe Structure

    Masakazu SHIBAHARA, Takuya IWAMOTO, Takahiro OSUKI, Kazuhiro OGAWA, Hisashi SERIZAWA, Hidekazu MURAKAWA

    International Seminar on Welding Science and Engineering（WSE2011) & CCWS Seminar 2011 雑誌   143 - 144   2011.11

    　More details

    Kind of work：Joint Work  

  • Measurement of In-situ Measurement System for 3D Welding Deformation Using Digital Camera

    Masakazu SHIBAHARA, Toshiki YAGI, Shinsuke ITOH

    International Seminar on Welding Science and Engineering（WSE2011) & CCWS Seminar 2011 雑誌   141 - 142   2011.11

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMによる超高速大規模解析

    柴原正和，生島一樹

    溶接構造シンポジウム2011 雑誌   301 - 308   2011.11

    　More details

    Kind of work：Joint Work  

  • Twisting Deformation of Thin Plate Stiffened Structure under Welding

    J.C Wang, M Shibahara, X.D Zhang and H Murakawa

    溶接構造シンポジウム2011 雑誌   29 - 36   2011.11

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMによる大型船体ブロックの固有ひずみ解析

    畑将司，望月正人，伊藤真介，柴原正和，山下泰生

    溶接構造シンポジウム2011 雑誌   329 - 336   2011.11

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMによる二相流分離器における成型鏡板の溶接変形解析

    伊藤真介，柴原正和，望月正人

    溶接構造シンポジウム2011 雑誌   349 - 356   2011.11

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMによる大規模溶接移動熱源問題の熱伝導解析の解析

    柴原正和，壷井翔太，生島一樹，伊藤真介

    溶接構造シンポジウム2011 雑誌   341 - 348   2011.11

    　More details

    Kind of work：Joint Work  

  • 反復サブストラクチャー法の導入による理想化陽解法FEMの高速化

    生島一樹，伊藤真介，柴原正和

    溶接構造シンポジウム2011 雑誌   321 - 328   2011.11

    　More details

    Kind of work：Joint Work  

  • GPUを用いた並列化理想化陽解法FEMの開発

    生島一樹，八木利起，伊藤真介，柴原正和

    溶接構造シンポジウム2011 雑誌   313 - 320   2011.11

    　More details

    Kind of work：Joint Work  

  • 凝固割れに関する力学的検討 ― 凝固割れ予測モデルの構築（第二報）―

    柴原正和，岩本拓也，小薄孝裕，小川和博，芹澤久，村川英一

    溶接構造シンポジウム2011 雑誌   41 - 48   2011.11

    　More details

    Kind of work：Joint Work  

  • Ultra Large Scale Welding Simulation

    M. Shibahara, K. Ikushima

    International Symposium on Disaster Simulation & Structural Safety in the Next Generation 雑誌   333 - 340   2011.09

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法を用いた多層溶接時における残留応力解析

    生島一樹，岡田崇志，柴原正和

    日本機械学会 M&M2011材料力学カンファレンス 雑誌   2011.07

    　More details

    Kind of work：Joint Work  

  • GPUを利用した並列化理想化陽解法FEMの開発

    生島一樹、柴原正和

    2010年度大阪大学接合科学研究所共同研究報告 雑誌   109 - 110   2011.07

    　More details

    Kind of work：Joint Work  

  • 溶接高温割れに関する力学モデルの構築

    柴原正和

    2010年度大阪大学接合科学研究所共同研究報告 雑誌   113 - 114   2011.07

    　More details

    Kind of work：Single Work  

  • 溶接三次元変形の画像計測

    柴原正和，恩田尚拡，八木利起，伊藤真介

    日本機械学会 M&M2011材料力学カンファレンス 雑誌   2011.07

    　More details

    Kind of work：Joint Work  

  • 溶接高温割れに関する簡易力学モデルの構築

    柴原正和，土橋知幸，岩本拓也，小薄孝裕，小川和博，芹澤久，村川英一

    日本機械学会 M&M2011材料力学カンファレンス 雑誌   2011.07

    　More details

    Kind of work：Joint Work  

  • MLPG法による溶接移動熱源問題の熱弾塑性解析手法 Reviewed

    柴原正和、旦越雄、堀友則、正岡孝治

    日本船舶海洋工学会論文集 雑誌   117 - 125   2011.06

    　More details

    Kind of work：Joint Work  

  • Development of Idealized Explicit FEM Reviewed

    K.Ikushima, S.Itoh, M.Shibahara, T.Fukasawa

    The Proceedings of the 20th International Offshore and Polar Engineering Conference 雑誌   166 - 173   2011.06

    　More details

    Kind of work：Joint Work  

  • Application of Inherent Strain Analysis Using Idealized Explicit FEM for Prediction of Welding Deformation in Ship Block Building Reviewed

    S.Itoh, M.Hata, M.Shibahara, M.Mochizuki

    The Proceedings of the 20th International Offshore and Polar Engineering Conference 雑誌   111 - 116   2011.06

    　More details

    Kind of work：Joint Work  

  • Investigation of Buckling Deformation of Thin Plate Welded Structures Reviewed

    J.Wang, S.Rashed, M.Shibahara, H.Murakawa

    The Proceedings of the 20th International Offshore and Polar Engineering Conference 雑誌   125 - 131   2011.06

    　More details

    Kind of work：Joint Work  

  • Time-history Measurement of Welding Deformation Using a Digital Camera Reviewed

    M.Shibahara, T.Tsuboi, S.Itoh, T.Fukasawa

    The Proceedings of the 20th International Offshore and Polar Engineering Conference 雑誌   117 - 124   2011.06

    　More details

    Kind of work：Joint Work  

  • Development of high speed welding analysis method for large scale structures based on the explicit FEM Reviewed

    K.Ikushima, M.Shibahara, K.Masaoka

    Mathematical Modelling of Weld Phenomena 9 雑誌   941 - 954   2011.01

    　More details

    Kind of work：Joint Work  

  • The Meshless Local Petrov-Galerkin Method for the Analysis of Heat Conduction Due to a Moving Heat Source in Welding Reviewed

    M.Shibahara, S.N.Atluri

    International Journal of Thermal Sciences 雑誌   984 - 992   2011.01

    　More details

    Kind of work：Joint Work  

  • 動的陽解法FEMを基にした大規模構造のための溶接過渡変形・応力解析手法の提案 Reviewed

    柴原正和、生島一樹、伊藤真介、正岡孝治

    溶接学会論文集 雑誌   001 - 009   2011.01

    　More details

    Kind of work：Joint Work  

  • Development of thermal elastic plastic analysis using meshless local Petrov- Galerkin method and ist application for welding problems Reviewed

    T.Hori, E.Dan, M.Shibahara, K.Masaoka

    Mathematical Modelling of Weld Phenomena 9 雑誌   967 - 981   2011.01

    　More details

    Kind of work：Joint Work  

  • Development of Analytical Method for Welding mechanics Using Idealized Explicit FEM

    Masakazu Shibahara, Kazuki Ikushima

    TRANSACTIONS OF JWRI 雑誌   39 ( 2 )   384 - 386   2010.12

    　More details

    Kind of work：Joint Work  

  • Image measurement of fillet welding distortion of pipe joint in two-phase flow separator

    Shinsuke Itoh, Masakazu Shibahara, Masahito Mochizuki

    TRANSACTIONS OF JWRI 雑誌   39 ( 2 )   372 - 374   2010.12

    　More details

    Kind of work：Joint Work  

  • 溶接中における三次元変形の時系列全視野計測 Reviewed

    柴原正和、恩田尚拡、伊藤真介、正岡孝治

    溶接学会論文集 雑誌   338 - 345   2010.10

    　More details

    Kind of work：Joint Work  

  • The Meshless Local Petrov-Galerkin Method for the Analysis of Heat Conduction Due to a Moving Heat Source in Welding

    Masakazu Shibahara, Kazuki Ikushima, S. N. Atluri

    International Conference on Computational & Engineering and Sciences Special Conference on “Meshless & Other Novel Computational Methods (ICCES MM 2010) 雑誌   25 - 25   2010.08

    　More details

    Kind of work：Joint Work  

  • デジタルカメラを用いた三次元溶接変形のIn-situ全視野計測法の開発

    柴原正和

    2009年度大阪大学接合科学研究所共同研究報告 雑誌   248 - 249   2010.07

    　More details

    Kind of work：Joint Work  

  • メッシュレス法による溶接力学解析法の開発

    堀 友則、柴原正和

    2009年度大阪大学接合科学研究所共同研究報告 雑誌   250 - 251   2010.07

    　More details

    Kind of work：Joint Work  

  • 理想化陽解法FEMに基づく溶接力学解析手法の開発

    生島一樹、柴原正和

    2009年度大阪大学接合科学研究所共同研究報告 雑誌   246 - 247   2010.07

    　More details

    Kind of work：Joint Work  

  • 狭開先溶接時における梨形ビード割れの解析と割れを考慮した溶接諸条件最適化システムの構築 Reviewed

    柴原正和、旦越雄、Yanming WU、畝田道雄、正岡孝治、村川英一

    日本船舶海洋工学会論文集 雑誌   2010.06

    　More details

    Kind of work：Joint Work  

  • ステレオ画像法による三次元溶接変形計測法の開発 Reviewed

    柴原正和、河村恵里、生島一樹、伊藤真介、望月正人、正岡孝治

    溶接学会論文集 雑誌   28 ( 1 )   108 - 115   2010.04

    　More details

    Kind of work：Joint Work  

  • Investigations on welding distortion in an asymmetrical curved block by means of numerical simulation technology and experimental method Reviewed

    D.Deng, H.Murakawa, M. Shibahara

    Computational Material Science 雑誌   48   187 - 194   2010.02

    　More details

    Kind of work：Joint Work  

  • Prediction of Hot Cracks of T-joints in Full Penetration Welding Process Reviewed

    Masakazu SHIBAHARA, Hayato NAGAKI, Shinji TAKABA, Hisashi SERIZAWA, Hidekazu MURAKAWA

    Welding in the World   53   312 - 321   2009.12

    　More details

    Kind of work：Joint Work  

  • 補修溶接施工時のシミュレーションによる健全性評価技術に関する研究 -時間経過に伴う補修溶接部の状態変化のモデル化-

    柴原正和

    2008年度大阪大学接合科学研究所共同研究報告 雑誌   98 - 99   2009.07

    　More details

    Kind of work：Single Work  

  • デジタルカメラを用いた溶接面内変形のIn-situ全視野計測 Reviewed

    柴原正和、山口晃司、恩田尚拡、伊藤真介、正岡孝治

    溶接学会論文集 雑誌   27 ( 2 )   154 - 161   2009.06

    　More details

    Kind of work：Joint Work  

  • Development of Hierarchical Multi-Grid Method and Its Application to Iterative Substructure Method Reviewed

    S.Itoh, M.Shibahara, H.Serizawa, M.Murakawa

    The Proceedings of the 19th International Offshore and Polar Engineering Conference 雑誌   700 - 705   2009.06

    　More details

    Kind of work：Joint Work  

  • Prediction of Welding Deformation of Shroud Head at Steam Separator Reviewed

    S.Itoh, M.Shibahara, M.Mochizuki, M.Murakawa

    The 12th International Conference on Pressure Vessel Technology 雑誌   2009.06

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いたT継手完全溶け込み溶接時における梨形ビード割れの発生予測 Reviewed

    柴原正和、伊藤真介、中田康平、鷹羽新二、芹澤久、正岡孝治、村川英一

    溶接学会論文集 雑誌   27 ( 1 )   73 - 80   2009.03

    　More details

    Kind of work：Joint Work  

  • 三次元溶接高温割れ解析法の開発と狭開先溶接時における梨形ビード割れ問題への応用 Reviewed

    柴原正和、伊藤真介、芹澤久、正岡孝治、村川英一

    溶接学会論文集 雑誌   27 ( 1 )   81 - 88   2009.03

    　More details

    Kind of work：Joint Work  

  • Influence of Various Factors on Distortion of Pipes Under Butt and Fillet Welding Reviewed

    S.Itoh, M.A.Sengel, M.Shibahara, H.Serizawa, H.Murakawa

    Mathematical Modelling of Weld Phenomena(溶接現象の数学的モデリング) 8 雑誌   1141 - 1154   2007.12

    　More details

    Kind of work：Joint Work  

  • Development of Temperature Dependent Interface Element for 3D Welding Hot Cracking Problems Reviewed

    S.Itoh, H.Noda, M.Shibahara, K.Masaoka

    Mathematical Modelling of Weld Phenomena(溶接現象の数学的モデリング) 8 雑誌   153 - 164   2007.12

    　More details

    Kind of work：Joint Work  

  • 画像処理による非接触変形・応力計測法の開発とその応用

    柴原正和

    JWRI Symposium 2007, 大阪 雑誌   28 - 29   2007.11

    　More details

    Kind of work：Single Work  

  • Prediction of Hot Crack of T-joints in Full Penetration Welding Using Temperature Dependent Interface Element

    M.Shibahara, S.Itoh, K.Nakata, H.Serizawa, H.Murakawa

    5th German-Japan Seminar 雑誌   2007.06

    　More details

    Kind of work：Joint Work  

  • A Unified Numerical Model of Oxygen Plasma Jet at Atmospheric Pressure Reviewed

    M.Tanaka, S.Tashiro, M.Shibahara, K.Tanaka, Y.Sano, N.Akiyoshi

    Trans. Mater. Res. Soc. Japan 雑誌   32 ( 2 )   535 - 538   2007.01

    　More details

    Kind of work：Joint Work  

  • Fracral Multi-Grid Method for Ultra Large Problem Based on Hybrid Variational Principle

    H.Murakawa, K.Taguchi, M.Shibahara, H.Serizawa

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES'07) 雑誌   1902 - 1907   2007.01

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素法を用いたT 継手完全溶け込み溶接時における梨形ビード割れの発生予測

    柴原正和、野田裕久、正岡孝治、永木勇人、安田修、鷹羽新二、芹澤 久、村川英一

    溶接構造シンポジウム2006, 大阪 雑誌   287 - 294   2006.12

    　More details

    Kind of work：Joint Work  

  • 画像処理による非接触変形・応力計測法の開発

    柴原正和、山口晃司、正岡孝司、坪郷尚

    溶接構造シンポジウム2006, 大阪 雑誌   667 - 674   2006.12

    　More details

    Kind of work：Joint Work  

  • プラズマ切断時の電極割れに関する力学的検討

    松本直博、柴原正和、正岡孝司、田中学、田中和士、佐野義美、秋吉直義

    溶接構造シンポジウム2006, 大阪 雑誌   295 - 302   2006.12

    　More details

    Kind of work：Joint Work  

  • 防撓箱形断面梁構造の繰り返し曲げ崩壊実験について

    正岡孝司、長尾誠、柴原正和、坪郷尚

    溶接構造シンポジウム2006, 大阪 雑誌   187 - 194   2006.12

    　More details

    Kind of work：Joint Work  

  • 狭開先溶接時における梨形ビード割れの発生予測

    柴原正和

    2004年度大阪大学接合科学研究所共同研究報告 雑誌   91 - 92   2006.06

    　More details

    Kind of work：Single Work  

  • サブピクセル画像処理を用いた構造物の非接触変形・応力計測法に関する研究 Reviewed

    畝田道雄、柴原正和、松石正克、石川憲一、岩田節雄、北村幸嗣

    精密工学会誌 雑誌   ( 72 )   360 - 364   2006.03

    　More details

    Kind of work：Joint Work  

  • Numerical Prediction of Welding Hot Cracking Using Three-Dimensional FEM with Temperature Dependent Interface Element (温度依存型界面要素を用いた3次元有限要素法による溶接高温割れの数値計算的予測) Reviewed

    M.Shibahara,S.Itoh,H.Serizawa,H.Murakawa

    Welding in the World 雑誌   50 - 57   2005.12

    　More details

    Kind of work：Joint Work  

  • Fractal Multi Grid Method for Ultra Large Scale FE Computation

    H. Murakawa,M. Tejima, S. Itoh,H. Serizawa,M. Shibahara

    The Proceedings of the 19th Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures, 神戸(第19回アジア太平洋海洋構造物に関する技術交流・諮問会議) 雑誌   216 - 223   2005.12

    　More details

    Kind of work：Joint Work  

  • Temperature Dependent Interface Element for Predicting Pear-shaped Bead Cracking under Narrow Gap Welding

    M. Shibahara,S. Itoh,H. Serizawa,K. Masaoka,H. Murakawa

    The Proceedings of the 19th Asian-Pacific Technical Exchange and Advisory Meeting on Marine Structures, 神戸(第19回アジア太平洋海洋構造物に関する技術交流・諮問会議) 雑誌   208 - 215   2005.12

    　More details

    Kind of work：Joint Work  

  • Fast Computational Scheme for Large Scale Nonlinear Transient Problems in Welding Mechanics

    H. Murakawa,H. Serizawa,M. ShibaharaS. Itoh

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES’05) 雑誌   2005.12

    　More details

    Kind of work：Joint Work  

  • Ultra Large Scale FE Computation Using Fractal Multi-Grid Method

    S. Itoh,M. Tejima,H. Murakawa,H. Serizawa,M. Shibahara

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES’05) 雑誌   228 - 233   2005.12

    　More details

    Kind of work：Joint Work  

  • Prediction of Hot Cracking Using Temperature Dependent Interface Element

    S. Itoh,M. Tejima,H. Murakawa,H. Serizawa,M. Shibahara

    Proceedings of International Conference on Computational & Experimental Engineering and Science (ICCES’05) 雑誌   144 - 149   2005.12

    　More details

    Kind of work：Joint Work  

  • Prediction of Pear-shaped Bead Cracking under Narrow Gap Welding Using 3D Temperature Dependent Interface Element

    M. Shibahara,S. Itoh,K. Masaoka,H. Serizawa,H. Murakawa

    Proceedings of the International Conference on Welding Science and Engineering 2005 (WSE’05) 雑誌   134 - 141   2005.10

    　More details

    Kind of work：Joint Work  

  • Development of 3-Dimensional High-Speed FEM for Welding Problems

    H. Serizawa,S. Itoh,T. Tsuda, H. Nishikawa,M. Shibahara,H. Murakawa

    Proceedings of the International Conference on Welding Science and Engineering 2005 (WSE’05) 雑誌   240 - 246   2005.10

    　More details

    Kind of work：Joint Work  

  • 狭開先溶接時における梨形ビード割れの発生予測

    柴原正和、村川英一

    JWRI Symposium 2003, 大阪 雑誌   61 - 69   2005.09

    　More details

    Kind of work：Joint Work  

  • 3-Dimensional High-Speed FEM for Thermal Elastic Plastic Welding Problems

    H. Nishikawa,I. Oda, S. Ito, M. Shibahara,H. SerizawaH. Murakawa

    4th German-Japanese Seminar - Materials, Processes and Components -, Proceedings 雑誌   2005.07

    　More details

    Kind of work：Joint Work  

  • Numerical Prediction of Welding Hot Cracking Using Three-Dimensional FEM with Temperature Dependent Interface Element

    M. Shibahara,S. Itoh, H. SerizawaH. Murakawa

    The 58th Annual Assembly of the International Institute of Welding, Commision X, IIW Doc. 雑誌   1591 - 2005   2005.07

    　More details

    Kind of work：Joint Work  

  • Prediction of Welding Hot Cracking Using Temperature Dependent Interface Element ?Modeling of Interfaces- (界面要素を用いた溶接高温割れの発生予測 -界面のモデル化-) Reviewed

    H. Murakawa,M.Shibahara,H. Serizawa

    Mathematical Modelling of Weld Phenomena(溶接現象の数学的モデリング) 7 雑誌   539 - 554   2005.06

    　More details

    Kind of work：Joint Work  

  • Development of Three Dimensional FEM Using Temperature Dependent Interface Element for Predicting Pear-shaped Bead Cracking under Narrow Gap Welding (温度依存型界面要素を用いた高温割れ解析法の開発と狭開先溶接時における梨形ビード割れの予測) Reviewed

    M.Shibahara,S.Itoh,H.Serizawa,H.Murakawa,T.Nakamura,K.Hiraoka

    The Proceedings of the 15th International Offshore and Polar Engineering Conference 雑誌   61 - 68   2005.06

    　More details

    Kind of work：Joint Work  

  • Finite Element Simulation of Pear-shaped Bead Cracking in Narrow Gap Welding Using Temperature Dependent Interface Element, (温度依存型界面要素を用いた狭開先溶接時における梨形ビード割れの有限要素シミュレーション) Reviewed

    M.Shibahara,H. Serizawa,H. Murakawa,T. Nakamura,K. Hiraoka

    Mathematical Modelling of Weld Phenomena(溶接現象の数学的モデリング) 7 雑誌   573 - 587   2005.06

    　More details

    Kind of work：Joint Work  

  • Computational Welding Mechanics for Practical Applications (実用のための計算溶接力学)

    H. Murakawa,H. Serizawa,M.Shibahara

    The Proceedings of International Workshop on Development of Computational Mechanics, 神戸 (計算力学の向上に関する国際会議), 雑誌   14 - 25   2005.04

    　More details

    Kind of work：Joint Work  

  • 中学生を対象に手作りラジオの製作と計測を通じた金沢工業大学における体験・導入教育 Reviewed

    畝田道雄、松石正克、柴原正和、坂本康正

    工学教育 雑誌   53 ( 2 )   30 - 35   2005.03

    　More details

    Kind of work：Joint Work  

  • 反復サブストラクチャー法を用いた溶接熱弾塑性解析の高速化 Reviewed

    村川英一、尾田勇、伊藤真介、芹澤久、柴原正和、西川弘泰

    関西造船協会論文集 雑誌   ( 243 )   67 - 70   2005.03

    　More details

    Kind of work：Joint Work  

  • 多層盛り溶接時にビード下に発生する延性低下割れ関する力学的検討

    柴原正和

    2003年度大阪大学接合科学研究所共同研究報告 雑誌   133 - 134   2004.11

    　More details

    Kind of work：Joint Work  

  • 多層溶接時における延性低下割れの発生予測

    柴原正和、芹澤久、村川英一、才田一幸、西本和俊、亀山雅司

    溶接構造シンポジウム2004, 大阪, 雑誌   445 - 452   2004.11

    　More details

    Kind of work：Joint Work  

  • 狭開先溶接時の梨形ビード割れのFEM解析と溶接条件の最適化

    柴原正和、WuYanming、芹澤久、村川英一、中村照美、平岡和雄

    溶接構造シンポジウム2004, 大阪 雑誌   437 - 444   2004.11

    　More details

    Kind of work：Joint Work  

  • 金沢工業大学の工学基礎実験における材料力学教育の一例

    柴原正和

    日本機械学会材料力学部門ニュースレター 雑誌   2004.11

    　More details

    Kind of work：Joint Work  

  • Influence of Groove Parameters on Formation of Pear-shaped Bead Cracking in Narrow Gap Welding (狭開先溶接時の梨形ビード割れの発生に及ぼす開先パラメータの影響について)

    W. Yanming,M.Shibahara, T. Nakamura,H. Murakawa

    TRANSACTIONS OF JWRI　(大阪大学接合科学研究所機関誌), 33-1, 71-78 雑誌   33 ( 1 )   2004.09

    　More details

    Kind of work：Joint Work  

  • Finite Element Simulation for Welding Hot Cracking Using Temperature Dependent Interface Element -Effect of Various Factors on Pear-shaped Bead Cracking in Narrow Gap Welding - (温度依存型界面要素を用いた溶接高温割れのFEM解析-狭開先溶接時の梨形ビード割れに及ぼす諸因子の影響について-)

    M.Shibahara, S. Itoh,H. Serizawa,H. Murakawa

    Proceedings of the Finnish- German-Japanese Joint International Seminar on Mechanical and Metallurgical Approaches to New Joining Process, 淡路島（新接合プロセスに対する力学・材料学的アプローチに関するフィンランド・ドイツ・日本共同国際セミナー） 雑誌   213 - 220   2004.07

    　More details

    Kind of work：Joint Work  

  • Numerical Simulation of Pear-shaped Bead Cracking in Narrow Gap Welding Using Temperature Dependent Interface Element (温度依存型界面要素を用いた狭開先溶接時の梨形ビード割れの計算シミュレーション)

    M.Shibahara,H. Serizawa,H. Murakawa,T. Nakamura,K. Hiraoka

    Proceedings of the International Conference 'Technical Trends and Future Prospectives of Welding Technology for Transportation, Land, Sea, Air and Space', 大阪(陸・海・空輸送のための溶接技術の傾向および未来予想に関する国際会議) 雑誌   505 - 512   2004.07

    　More details

    Kind of work：Joint Work  

  • Three- dimensional　Thermal-　elastic-　plastic Analysis　for　Predicting　Residual　Stress　and　Deformation　Under　Multi-pass　Welding（3次元熱弾塑性解析法による多層溶接時における変形・残留応力予測） Reviewed

    H.Nishikawa,I.Oda,M.Shibahara,H.Serizawa,H.Murakawa

    The Proceedings of the 14th International Offshore and Polar Engineering Conference 雑誌   126 - 132   2004.05

    　More details

    Kind of work：Joint Work  

  • Influence of heat input distribution parameters on formation of pear-shaped bead cracking in narrow gap welding (狭開先溶接時における梨形ビード割れに及ぼす入熱パラメータの影響) Reviewed

    Y.Wu,M.Shibahara,T.Nakamura, H.Murakawa

    The Proceedings of the 14th International Offshore and Polar Engineering Conference 雑誌   141 - 147   2004.05

    　More details

    Kind of work：Joint Work  

  • 高校生を対象に金沢工業大学で実施している工学への導入教育の試みと成果（強度解析ソフトウェアを取り入れたバルサブリッジの設計・製作） Reviewed

    畝田道雄、松石正克、松本重男、竹俣一也、柴原正和、齊藤康弘

    日本設計工学会誌 雑誌   39 ( 4 )   50 - 55   2004.04

    　More details

    Kind of work：Joint Work  

  • 多層溶接時に発生する延性低下割れのFEM解析 Reviewed

    柴原正和、曽根慎二、芹澤久、村川英一、西本和俊、才田一幸、亀山雅司

    関西造船協会論文集 雑誌   ( 241 )   177 - 186   2004.03

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いた溶接横断面内における高温割れ解析と提案手法に含まれる諸パラメータの定量化 Reviewed

    柴原正和、芹澤久、村川英一

    溶接学会論文集 雑誌   22 ( 1 )   94 - 100   2004.02

    　More details

    Kind of work：Joint Work  

  • Numerical Simulation of Residual Stress and Deformation Considering Phase Transformation Effect (相変態効果を考慮した残留応力および変形解析)

    D. Deng, Y. Luo,H. Serizawa,M.Shibahara, H. Murakawa

    TRANSACTIONS OF JWRI(大阪大学接合科学研究所機関誌) 雑誌   32 ( 2 )   325 - 334   2003.12

    　More details

    Kind of work：Joint Work  

  • Numerical Simulation of Pear-shaped Bead Cracking in Narrow Gap Welding (狭開先溶接時における梨形ビード割れの計算シミュレーション)

    M.Shibahara, S. Itoh,H. Serizawa,H. Murakawa

    TRANSACTIONS OF JWRI(大阪大学接合科学研究所機関誌), 32-2, 335-342 雑誌   32 ( 2 )   335 - 342   2003.12

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いたFEMによる高温割れの発生予測

    柴原正和、芹澤久、村川英一

    2002年度大阪大学接合科学研究所共同研究報告 雑誌   131 - 132   2003.11

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いた高温割れの発生予測 -狭開先溶接時における梨形ビード割れの解析-

    柴原正和、芹澤久、村川英一

    JWRI Symposium 2003, 大阪 雑誌   51 - 57   2003.09

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いた高温割れのモデル化と割れ発生予測 Reviewed

    柴原正和、芹澤久、村川英一

    軽金属溶接 雑誌   41 ( 8 )   19 - 29   2003.08

    　More details

    Kind of work：Joint Work  

  • Finite Element Simulation of Pear-shaped Bead Cracking in Narrow Gap Welding Using Temperature Dependent Interface Element (温度依存型界面要素を用いた狭開先溶接時における梨形ビード割れのシミュレーション)

    M.Shibahara, T. Nakamura,K. Hiraoka,H. Serizawa,H. Murakawa

    Sixth Workshop on the Ultra-Steel New Structural Steels and New Design of Constructions (第6回超鉄鋼ワークショップ 新構造用鋼と新構造への期待), 茨木 雑誌   51 - 57   2003.06

    　More details

    Kind of work：Joint Work  

  • Finite Element Simulation of Pear-shaped Bead Cracking in Narrow Gap Welding (狭開先溶接時における梨形ビード割れのFEM解析) Reviewed

    M.Shibahara,S. Itoh,L. Wei,H. Murakawa

    The Proceedings of the 13th International Offshore and Polar Engineering Conference 雑誌   ( 4 )   135 - 140   2003.05

    　More details

    Kind of work：Joint Work  

  • Finite Element Method for Hot Cracking on Transverse Cross Section Using Temperature Dependent Interface Element(温度依存型界面要素を用いた溶接横断面内に発生する高温割れのFEM解析) Reviewed

    M.Shibahara, H. Serizawa, H. Y. Ueda,Murakawa,

    The Proceedings of the 13th International Offshore and Polar Engineering Conference 雑誌   ( 4 )   195 - 201   2003.05

    　More details

    Kind of work：Joint Work  

  • Method for Predicting Deformation of Curved Structures under Assembly by Welding(曲面構造物を組み立てる際に生じる溶接変形の予測法) Reviewed

    D. Deng, S. Nagano,M.Shibahara, H. Murakawa

    The Proceedings of the 13th International Offshore and Polar Engineering Conference 雑誌   ( 4 )   153 - 159   2003.05

    　More details

    Kind of work：Joint Work  

  • Theoretical study on Forming Twisted Longitudinals by Line Heating(線上加熱による捩れロンジ材の成形に関する理論的研究) Reviewed

    H. Serizawa,R. Miyoshi, M.Shibahara, H. Murakawa

    The Proceedings of the 13th International Offshore and Polar Engineering Conference 雑誌   ( 4 )   172 - 178   2003.05

    　More details

    Kind of work：Joint Work  

  • シーム溶接のFEM解析法の開発および溶接条件最適化への適用

    南宏幸、山本大樹、柴原正和、芹澤久、村川英一

    溶接構造シンポジウム'02, 大阪, 雑誌   91 - 98   2002.11

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いたHouldcroft高温割れ試験の解析

    柴原正和、伊藤真介、芹澤久、村川英一

    溶接構造シンポジウム'02, 大阪 雑誌   591 - 598   2002.11

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いた溶接横断面内における高温割れ解析

    柴原正和、芹澤久、村川英一

    溶接構造シンポジウム'02, 大阪 雑誌   599 - 606   2002.11

    　More details

    Kind of work：Joint Work  

  • 薄板構造物の溶接組立における変形予測（第一報：変形予測ギャップおよび目違いを考慮した変形予測） Reviewed

    村川英一、鄧徳安、柴原正和

    関西造船協会論文集 雑誌   ( 238 )   163 - 172   2002.09

    　More details

    Kind of work：Joint Work  

  • Finite Element Analysis Using Interface Element for Predicting Deformation during Butt Welding Considering Root Gap and Tack Welds　(ルートギャップおよび仮付けを考慮した界面要素を用いたFEMによる突合せ溶接時の変形予測)

    M.Shibahara, H. Serizawa, H. Murakawa

    TRANSACTIONS OF JWRI(大阪大学接合科学研究所機関誌) 雑誌   31 ( 1 )   63 - 70   2002.07

    　More details

    Kind of work：Joint Work  

  • Effect of Various Factors on Transverse Shrinkage under Butt Welding (板継溶接時における横収縮に及ぼす諸因子の影響)

    M.Shibahara,H. Serizawa,H. Murakawa

    The Proceedings of the 16th Asian-Pacific Technical Exchange and AdvisoryMeeting on Marine Structures, 神戸（第16回アジア太平洋海洋構造物に関する技術交流・諮問会議） 雑誌   215 - 225   2002.05

    　More details

    Kind of work：Joint Work  

  • Finite Element Analysis Using Interface Element for Predicting Deformation during Butt Welding Considering Root Gap and Tack Welds (ルートギャップおよび仮付けを考慮できる界面要素を用いたFEMによる突合せ溶接時の変形予測) Reviewed

    M.Shibahara, H.Serizawa, H.Murakawa, Y.Ueda

    The Proceedings of the 12th International Offshore and Polar Engineering Conference 雑誌   325 - 331   2002.05

    　More details

    Kind of work：Joint Work  

  • 界面要素を用いたFEMによる溶接高温割れに関する理論的研究（第五報：板継溶接時における横収縮および端部割れに及ぼすルートギャップ、仮付け、タブ板の影響） Reviewed

    柴原正和、鄧徳安、芹澤久、村川英一

    関西造船協会誌 雑誌   ( 237 )   237 - 245   2002.03

    　More details

    Kind of work：Joint Work  

  • Computer Simulation for Strength Analysis of Joint between Dissimilar Materials Using Interface Element(界面要素を用いた異材接合継手の強度解析のための計算シミュレーション) Reviewed

    M.Shibahara,Z.Wu,H.Serizawa, H.Murakawa

    Special Issue of Materials Transaction(材料会報の特別発行物) 雑誌   ( 2 )   1927 - 1930   2001.12

    　More details

    Kind of work：Joint Work  

  • Numerical Simulation of Hot Cracking in Weld Using Temperature Dependent Interface Element (温度依存型界面要素を用いた溶接高温割れの計算シミュレーション)

    M.Shibahara,H. Serizawa,H. Murakawa

    Seventh International Welding Symposium (７WS),神戸 (第７回国際溶接シンポジウム) 雑誌   2   1075 - 1080   2001.11

    　More details

    Kind of work：Joint Work  

  • Finite Element Method for Analysis of Hot Cracking under Welding Using Temperature Dependent Interface Element (温度依存型界面要素を用いた溶接高温割れのFEM解析)

    M.Shibahara, H. Serizawa,H. Murakawa

    Proceedings of the Fifteenth Asian Technical Exchange and Advisory Meeting on Marine Structures,Jochiwon（第１５回アジア太平洋海洋構造物に関する技術交流・諮問会議） 雑誌   311 - 318   2001.10

    　More details

    Kind of work：Joint Work  

  • 界面要素を用いたFEMによる溶接高温割れに関する理論的研究（第四報：溶接横断面内における高温割れ解析）- Reviewed

    柴原正和、芹澤久、村川英一

    関西造船協会誌 雑誌   ( 236 )   229 - 238   2001.09

    　More details

    Kind of work：Joint Work  

  • Strength Analysis of Joints between Dissimilar Materials Using Interface Elements (界面要素を用いた異材接合継手の強度解析)

    H. Murakawa,H. Serizawa,Z. Wu,M.Shibahara

    TRANSACTIONS OF JWRI (大阪大学接合科学研究所機関誌) 雑誌   28 ( 2 )   71 - 75   2001.07

    　More details

    Kind of work：Joint Work  

  • Finite Element Simulation for Hot Cracking Under Welding Using Temperature Dependent Interface Element (温度依存型界面要素を用いた溶接高温割れのFEM解析)

    M.Shibahara, H. Serizawa,H. Murakawa

    The Fourth International Congress on Thermal Stresses, 大阪(第4回熱応力に関する国際会議) 雑誌   137 - 140   2001.06

    　More details

    Kind of work：Joint Work  

  • Finite Element Analysis of Hot Cracking under Welding Using Temperature Dependent Interface Element (温度依存型界面要素を用いた溶接時の高温割れのFEM解析) Reviewed

    M.Shibahara,H.Serizawa, H. Murakawa

    The Proceedings of the 11th International Offshore and Polar Engineering Conference 雑誌   297 - 303   2001.06

    　More details

    Kind of work：Joint Work  

  • 温度依存型界面要素を用いた溶接高温割れのモデル化とFish Bone型高温割れ試験への応用 Reviewed

    柴原正和、芹澤久、村川英一

    溶接学会論文集 雑誌   19 ( 2 )   365 - 372   2001.05

    　More details

    Kind of work：Joint Work  

  • Strength Analysis of Joint between Dissimilar Materials Using Interface Element(界面要素を用いた異材接合継手の強度解析) Reviewed

    H.Murakawa,H.Serizawa,Z.Wu,M.Shibahara

    Material Science Research International (MSRI) 雑誌   ( 2 )   209 - 213   2001.05

    　More details

    Kind of work：Joint Work  

  • 界面要素を用いたFEMによる溶接高温割れに関する理論的研究（第三報：静的-動的混合解法の開発） Reviewed

    柴原正和、芹澤久、村川英一

    関西造船協会誌 雑誌   ( 235 )   161 - 169   2001.03

    　More details

    Kind of work：Joint Work  

  • Finite Element Method for Hot Cracking Analysis Under Welding Using Temperature Dependent Interface Element (温度依存型界面要素を用いた溶接高温割れ解析) Reviewed

    M.Shibahara,H.Serizawa, H. Murakawa

    Modeling of Casting, Welding and Advanced Solidification Processes IX 雑誌   ( IX )   844 - 851   2000.08

    　More details

    Kind of work：Joint Work  

  • Finite Element Method for Hot Cracking Using Interface Element (Report II)―Mechanical Study of Houldcroft Test― (界面要素を用いた高温割れのFEM解析(第2報)Houldcroft試験の力学的検討)

    M.Shibahara, H. Serizawa,H. Murakawa

    TRANSACTIONS OF JWRI(大阪大学接合科学研究所機関誌) 雑誌   29 ( 1 )   59 - 64   2000.07

    　More details

    Kind of work：Joint Work  

  • 界面要素を用いたFEMによる溶接高温割れに関する理論的研究（第二報：温度依存型界面要素の定量的モデル化） Reviewed

    柴原正和、芹澤久、村川英一、呉政奇

    関西造船協会誌 雑誌   ( 233 )   149 - 155   2000.03

    　More details

    Kind of work：Joint Work  

  • 板継溶接時における溶接変形の発生機構

    柴原正和、 村川英一

    溶接構造シンポジウム’99 , 大阪 雑誌   303 - 310   1999.12

    　More details

    Kind of work：Joint Work  

  • Finite Element Method for Hot Cracking Analysis Using Temperature Dependent Interface Element (温度依存型界面要素を用いた高温割れ解析) Reviewed

    M.Shibahara,H.Serizawa, H. Murakawa

    Mathematical Modeling of Weld Phenomena (溶接現象の数学的モデリング) 5 雑誌   253 - 267   1999.10

    　More details

    Kind of work：Joint Work  

  • 界面要素を用いたFEMによる溶接高温割れに関する理論的研究（第一報：温度依存型界面要素の開発） Reviewed

    柴原正和、芹澤久、村川英一

    関西造船協会誌 雑誌   ( 232 )   135 - 144   1999.09

    　More details

    Kind of work：Joint Work  

  • Finite Element Method for Hot Cracking Using Interface Element(界面要素を用いた高温割れのFEM解析)

    M.Shibahara,H. Serizawa,H. Murakawa

    TRANSACTIONS OF JWRI（大阪大学接合科学研究所機関誌） 雑誌   28 ( 1 )   47 - 53   1999.08

    　More details

    Kind of work：Joint Work  

  • Effect of Various Factors on Transverse Shrinkage under Butt Welding(板継溶接時における横収縮に及ぼす諸因子の影響)

    M.Shibahara,H.Murakawa

    TRANSACTIONS OF JWRI（大阪大学接合科学研究所機関誌） 雑誌   27 ( 2 )   97 - 106   1998.12

    　More details

    Kind of work：Joint Work  

  • 板継溶接における横収縮に及ぼす諸因子の影響に関する検討 Reviewed

    柴原正和、村川英一

    関西造船協会誌 雑誌   ( 230 )   263 - 272   1998.09

    　More details

    Kind of work：Joint Work  

▼display all

Books and Other Publications

  • 船舶一問一答　これであなたも「船博」士

    村井基彦,八木光,林茂弘,池田良穂,勝井辰博,柴原正和,正岡孝治,安川宏紀,吉川孝男,慎燦益（ Role： Joint author）

    ㈱海事プレス社  2006.03 

  • 造船構造設計者のための有限要素法

    　（ Role： Joint author）

    関西造船協会KSSG委員会  2004.12 

    　More details

    Responsible for pages：124-125  

MISC

  • 理想化陽解法FEMによる溶接力学シミュレーション

    柴原正和、生島一樹

    70   10 - 14   2023.12

  • 配管構造物における溶接継手の健全性の評価のためのデジタルツインシステムの開発

    柴原正和、生島一樹、荒井正行

    28 ( 12 )   55 - 60   2023.12

  • AI 社会実装支援 次世代人工知能・ロボットの中核となるインテグレート技術開発「匠の技」だった鉄板の曲面加工をAIで自動化

    林修司、柴原正和、丹後義彦、熊岡哲也

    Focus NEDO   11   2023.02

    　More details

  • NEDO「AI NEXT FORUM 2023」で展示される最新AI技術(1)AI×ロボットで極厚の鉄板を熱して曲げる!!

    柴原正和

    ASCII STARTUP   2023.02

  • デジタル溶接力学の発展

    柴原正和、生島一樹、前田新太郎

    溶接学会誌   91 ( 7 )   37 - 48   2022.10

  • 溶接力学シミュレーションの過去と未来

    柴原正和、生島一樹、前田新太郎

    日本溶接協会誌「溶接技術」   70   94 - 97   2022.06

  • 摩擦攪拌接合時の力学的挙動に及ぼすツール形状の影響に関する数値解析的検討—Numerical Study on Effect of Tool Shape on Mechanical Behavior during Friction Stir Welding—特集号 鉄鋼材料の摩擦接合技術

    山内 悠暉, 李 志浩, 木谷 悠二, 九鬼 正治, 生島 一樹, 柴原 正和

    鉄と鋼 / 日本鉄鋼協会 編   108 ( 12 )   991 - 1001   2022（ ISSN:0021-1575 ）

  • AI技術とICT技術を融合した線状加熱法による鋼板曲げ作業支援自動化システム

    丹後義彦, 柴原正和

    日本溶接協会誌「溶接技術」   69 ( 6 )   95 - 99   2021.06

    　More details

  • 摩擦攪拌接合時の力学的挙動の数値解析的検討—Study on Mechanical Behavior during Friction Stir Welding Using Numerical Simulation

    生島 一樹, 李 志浩, 木谷 悠二, 前田 新太郎, 宮坂 史和, 柴原 正和

    軽金属溶接 = Journal of light metal welding : 軽金属溶接協会誌   59 ( 5 )   170 - 176   2021.05（ ISSN:0368-5306 ）

    　More details

  • スポット溶接のプロセス・力学シミュレーション

    柴原 正和, 生島 一樹

    溶接学会誌   Vol.90 ( No.3 )   pp.20 - 25   2021.04

    　More details

  • 超高速・大規模化解析による溶接変形・残留応力シミュレーション

    柴原 正和, 生島 一樹

    化学工業   Vol.71 ( No.9 )   pp.581 - 586   2020.09

    　More details

  • 溶接・接合工学の最近の動向 III溶接構造研究委員会

    望月 正人, 柴原 正和, 堤 成一郎, 三上 欣希, 生島 一樹, 岡野 成威

    溶接学会誌   Vol.89 ( No.5 )   pp.74 - 81   2020.07

    　More details

  • Technical Commission on Welded Structure Invited

    Masahito MOCHIZUKI, Masakazu SHIBAHARA, Seiichiro TSUTSUMI, Yoshiki MIKAMI, Kazuki IKUSHIMA, Shigetaka OKANO

    Journal of the Japan Welding Society   89 ( 5 )   358 - 365   2020.07（ ISSN:0021-4787 ）

    　More details

    Publishing type：Book review, literature introduction, etc.  

    DOI： 10.2207/jjws.89.358

  • 溶接力学問題に対するAIの応用

    柴原 正和, 生島 一樹, 前川 真奈海

    溶接学会誌   Vol.88 ( No.7 )   pp.22 - 28   2019.10

    　More details

  • アドホック研究会テーマ「実構造物への展開を目指した溶接変形予測技術の活用」

    柴原正和

    溶接学会誌   88 ( 5 )   2019.06

    　More details

  • 凝固・組織変化を伴う溶接部の特性予測技術の開発

    才田一幸, 柴柳敏哉, 柴原正和

    溶接学会春季全国大会講演概要   Vol.102   S13 - S18   2019.04

    　More details

  • 粒子法と有限要素法を用いたFSW力学解析手法

    柴原 正和, 生島 一樹, 宮坂 史和

    溶接学会誌   Vol.88 ( No.3 )   pp.31 - 35   2019.04

    　More details

  • 溶接高温割れの力学シミュレーション

    柴原正和, 生島一樹, 前田新太郎

    溶接学会春季全国大会講演概要   Vol.102   S19 - S22   2019.04

    　More details

  • Study on Influence of Constraint on Hot Cracking

    MAEDA Shintaro, OKIMI Yui, ASHIDA Ryo, IKUSHIMA Kazuki, SHIBAHARA Masakazu, MA Ninshu

    Preprints of the National Meeting of JWS   2019 ( 0 )   4 - 5   2019

    　More details

  • 理想化陽解法FEMによる溶接構造物の大規模接合・組立シミュレーション

    柴原 正和, 生島 一樹

    溶接学会誌   Vol.87 ( No.6 )   pp.6 - 9   2018.09

    　More details

  • デジタル画像相関法の溶接変形への適用

    柴原 正和, 生島 一樹

    軽金属溶接   Vol.56 ( No.5 )   pp.10 - 15   2018.05

    　More details

  • Prediction method of improved residual stress distribution by shot peening using large scale analysis method

    K. Ikushima, M. Shibahara, S. Nishikawa, T. Furukawa, K. Akita, H. Suzuki, S. Morooka

    E-Journal of Advanced Maintenance   Vol.9 ( No.3 )   2017.11

    　More details

  • ここまで来たCAE 第6回 生産・建造におけるCAE

    柴原 正和, 生島 一樹

    日本船舶海洋工学会誌「KANRIN (咸臨)」   Vol.73   pp.22 - 27   2017.07

    　More details

  • 初層溶接時の溶接変形解析

    柴原 正和, 生島 一樹

    日本溶接協会誌「溶接技術」   Vol.64 ( No.3 )   pp.66 - 70   2016.02

    　More details

  • 3次元スポット溶接シミュレーションの活用

    柴原 正和, 生島 一樹

    日本溶接協会誌「溶接技術」   Vol.63 ( No.4 )   pp.112 - 117   2015.03

    　More details

  • 集まれエンジニア！「溶接変形の三次元画像計測」

    柴原 正和, 生島 一樹

    溶接学会誌   Vol.84 ( No.2 )   pp.6 - 10   2015.02

    　More details

  • 特集「最新シミュレーション技術による溶接力学の最前線」―溶接変形・残留応力のシミュレーション―

    柴原 正和, 生島 一樹

    溶接学会誌   Vol.83 ( No.7 )   pp.549 - 554   2014.09

    　More details

  • Ultra Large Scale FE Computation Using Idealized Explicit FEM Accelerated by GPU

    K. Ikushima, S. Itoh, M. Shibahara

    pp.91 - 92   2012.03

    　More details

  • Residual Stress Analysis of Multi-pass Welding Using Idealized Explicit FEM with GPU

    T. Okada, K. Ikushima, S. Itoh, M. Shibahara, S. Nishikawa

    pp.93 - 94   2012.03

    　More details

  • Development of Analytical Method for Welding Mechanics Using Idealized Explicit FEM

    M. Shibahara, K. Ikushima

    Vol.39 ( No.2 )   384 - 386   2010.12

    　More details

▼display all

Works

  • 超狭開先溶接における高温割れのモデル解析とその防止法の研究

    2002

  • 3次元溶接高温割れ解析法の開発

    2002

  • ボックス柱エレスラ溶接時に発生する割れに関する研究

    2002

Outline of collaborative research (seeds)

  • デジタルカメラを用いた三次元計測法の開発

  • 溶接移動熱源の3次元FEM解析法の開発

  • 大規模高速化FEM解析手法の開発

  • 溶接割れの発生予測に関する理論的研究

    　More details

    　溶接割れ発生の有無および進展長さを事前に予測するためのツールとして、「温度依存型界面要素を用いた溶接割れ解析法」を開発し、高温割れ問題や再熱割れ問題への適用を試みた。 今後は、高温割れモデルに凝固モデルを導入することにより、より実現象を忠実に再現できる解析法の開発を進める他、水素脆化割れ問題や応力腐食割れ問題等への展開を視野に入れ、溶接割れを統一的に解析する手法の開発を試みる。

  • 溶接変形・残留応力の推定

    　More details

    溶接施工現場で問題となっている、各種溶接接合時に発生する溶接変形および残留応力の推定を行う。 　これまでの実績としては、多層溶接の他、狭開先溶接、レーザー溶接、FCB溶接時の変形、残留応力の解析を実施している。

  • 画像処理による非接触変形・応力測定法に関する研究

    　More details

    　近年におけるデジタルカメラの高性能化に伴い、構造物の変形・応力計測に画像相関法等の画像処理技術を応用する研究が盛んに行われている．これらの方法は，簡便で且つ画像の持つ情報量の多さゆえ有望視されている．そこで本研究では，残差力による修正変位法を新たに提案し、それにより高精度化した画像処理による非接触変形・応力計測法の開発を行う。

▼display all

Grant-in-Aid for Scientific Research

  • Four-Dimensional Visualization of Thermal Processing in Ship Hull Fabrication and Establishment of Crack Prevention Using Digital Twins

    Grant-in-Aid for Scientific Research(B)  2026

  • Four-Dimensional Visualization of Thermal Processing in Ship Hull Fabrication and Establishment of Crack Prevention Using Digital Twins

    Grant-in-Aid for Scientific Research(B)  2025

  • Four-Dimensional Visualization of Thermal Processing in Ship Hull Fabrication and Establishment of Crack Prevention Using Digital Twins

    Grant-in-Aid for Scientific Research(B)  2024

Charge of on-campus class subject

  • 船舶海洋材料力学1

    2024   Weekly class   Undergraduate

  • 海洋システム工学概論

    2024   Weekly class   Undergraduate

  • 海洋システム工学実験

    2024   Weekly class   Undergraduate

  • 船舶海洋構造工学特論1

    2024   Weekly class   Graduate school

  • 航空宇宙海洋系特別研究第1

    2024   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別演習第1

    2024   Intensive lecture   Graduate school

  • 工学研究の最先端

    2024   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別演習

    2024   Intensive lecture   Graduate school

  • 船舶海洋材料力学2

    2024   Weekly class   Undergraduate

  • 海洋システム工学総合演習

    2024   Weekly class   Undergraduate

  • 海洋プログラミング演習

    2024   Weekly class   Undergraduate

  • 海洋システム情報工学特論

    2024   Weekly class   Graduate school

  • 航空宇宙海洋系特別研究第2

    2024   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別演習第2

    2024   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別研究

    2024   Intensive lecture   Graduate school

  • 船舶海洋構造工学特論1

    2023   Weekly class   Graduate school

  • 航空宇宙海洋系特別研究第1

    2023   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別演習第1

    2023   Intensive lecture   Graduate school

  • 船舶海洋材料力学1

    2023   Weekly class   Undergraduate

  • 海洋システム工学概論

    2023   Weekly class   Undergraduate

  • 海洋システム工学実験

    2023   Weekly class   Undergraduate

  • 初年次ゼミナール

    2023   Weekly class   Graduate school

  • 航空宇宙海洋系特別演習

    2023   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別研究

    2023   Intensive lecture   Graduate school

  • 船舶海洋材料力学2

    2023   Weekly class   Undergraduate

  • 海洋プログラミング演習

    2023   Weekly class   Undergraduate

  • 海洋システム工学総合演習

    2023   Weekly class   Undergraduate

  • 航空宇宙海洋系特別研究第2

    2023   Intensive lecture   Graduate school

  • 航空宇宙海洋系特別演習第2

    2023   Intensive lecture   Graduate school

  • 海洋システム工学実験

    2022   Weekly class   Undergraduate

  • 海洋システム工学概論

    2022   Weekly class   Undergraduate

  • Total Exercises: Marine System Engineering

    2021    

  • Science and Technology for Marine Utilization

    2021    

  • Recent Advances in Engineering

    2021    

  • Introduction to Mechanical, Aerospace and Marine-System EngineeringI

    2021    

  • Prgraming Exercises: Marine System Engineering

    2021    

  • Strength of Materials B

    2021    

  • Laboratory: Marine System Engineering

    2021   Practical Training  

▼display all

Social Activities　⇒ Link to the list of Social Activities

  • 高大連携授業公開講座 工学研究の最先端

    2013.04 - 2014.03

  • テクノラボツアー ポスターセッション

    2012.04 - 2013.03

  • テクノラボツアー ポスターセッション

    2011.04 - 2012.03

  • テクノラボツアー ポスターセッション

    2010.04 - 2011.03

  • 第18回青少年サマーセミナー 海をもっと知ろう海をもっと知ろう～海が地球を救う～

    2009.04 - 2010.03

  • テクノラボツアー 材料の変形・ひずみを画像診断する　－柔らかいゴムのき裂から金属の溶接変形まで－

    2009.04 - 2010.03

  • テクノラボツアー ポスターセッション

    2009.04 - 2010.03

  • 第17回青少年サマーセミナー 船はつよいな 大きいな～船の丈夫さの秘密～

    2008.04 - 2009.03

  • テクノラボツアー ポスターセッション

    2008.04 - 2009.03

  • テクノラボツアー 溶接変形・応力・割れのFEM解析

    2006.04 - 2007.03

  • テクノラボツアー ポスターセッション

    2006.04 - 2007.03

  • テクノラボツアー 溶接変形・応力・割れの解析

    2005.04 - 2006.03

▼display all

Foreigner acceptance

  • 2023

    foreigners accepted :1

    International Students :2

  • 2022

    foreigners accepted :1

    International Students :2