Kumagai Tomohisa

クマガイトモヒサ | Kumagai Tomohisa

Affiliation and department：
Job title： Senior Scientific Researcher

Research field (3)： Structural and functional materials , Structural and functional materials , Machine materials and mechanics

Research keywords (9)： Steel , Dislocation , Impact Strength , Materials Strength at High Temperature , Peridynamics , Finite Element Method , First Principles Calculation , Classical Molecular Dynamics , Interatomic Potential

Research theme for competitive and other funds (4)：

2022 - 2025 変形・破壊特性のひずみ速度依存性を考慮した鋼板貫通評価式の開発と確率論的貫通評価
2021 - 2024 The development of machine-learning based prediction and evaluation of neutron embrittlement by computational science
2008 - 2010 Control of Structural and Adsorption Properties of Diamond-Like Carbon Films by Adding Various Elements
2008 - 2009 Multiscale simulation for boundary lubrication by using particle method.

Papers (46)：

Eui-Kyun Park, Jin-Ha Hwang, Yun-Jae Kim, Tomohisa Kumagai. Strain-Based damage model for ductile tearing simulation under combined tensile and shear modes. Engineering Fracture Mechanics. 2024
Hayato TOKUNAGA, Akiyoshi NOMOTO, Tomohisa KUMAGAI, Hiroyuki YAMADA. Strain Rate Dependence of Strain-Induced Martensitic Formation and Tensile Ductility in SUS304 Stainless Steel. Journal of the Society of Materials Science, Japan. 2024. 73. 4. 314-319
Tomohisa Kumagai, Kazuma Suzuki, Akiyoshi Nomoto, Satoshi Hara, Akiyuki Takahashi. Prediction of the binding energy of self interstitial atoms in alpha iron by a graph neural network. Materialia. 2024. 33. 101977
Tomohisa Kumagai, Maniesha Singh, Anter El-Azab. A first-principles investigation of internal energy and entropy of formation of charged defects in Th1-xUxO2 (x ≤ 0.5). Journal of Applied Physics. 2024. 135. 6. 065103-1-065103-18
Kaoru Nakamura, Tomohisa Kumagai, Toshiharu Ohnuma. Atomistic simulation of shear deformation at bcc-Fe grain boundary and precipitation strengthening by Cr23C6. Materials Today Communications. 2022. 33. 104711

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MISC (1)：

恒元陽介, 平能敦雄, 高橋昭如, 熊谷知久, 野本明義. Modeling of critical resolved shear stress for interaction between screw dislocation and prismatic dislocation loop in alpha-iron. 日本機械学会計算力学講演会論文集(CD-ROM). 2023. 36th

Lectures and oral presentations (66)：

Benchmark Analysis for Ductile Fracture Simulation -Analysis by CRIEPI-
(Asian Pacific Congress on Computational Mechanics 2019, Taipei, Taiwan 2019)
スプリット・ホプキンソン棒法による炭素鋼の引張特性に及ぼすひずみ速度の影響の研究
(M&M2019材料力学カンファレンス, 九州大学. 2019)
広範なひずみ速度域におけるSUS304鋼の応力ひずみ曲線
(M&M2019材料力学カンファレンス, 九州大学. 2019)
離散転位動力学法を用いた亀裂先端における応力拡大係数に及ぼす溶質原子クラスター形成の効果の検討
(第51回原子力学会秋の大会, 富山大学. 2019)
ひずみ硬化を考慮したテイラーインパクト試験における試験体変形評価法
(日本高圧力技術協会平成31年度秋季講演会, とかちプラザ. 2019)

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Education (3)：

2004 - 2007 The University of Tokyo The Graduate School of Engineering Department of Mechanical Engineering
2002 - 2004 The University of Tokyo The Graduate School of Engineering Department of Mechanical Engineering
1998 - 2002 The University of Tokyo The Faculty of Engineering Department of Mechano-Informatics

Professional career (1)：

博士(工学) (東京大学)

Work history (4)：

2021/07 - 現在 Central Research Institute of Electric Power Industry Materials Science Division, Energy Transformation Research Laboratory Senior Research Scientist
2010/04 - 2021/06 Central Research Institute of Electric Power Industry Materials Science Laboratory Research Scientist
2019/07 - 2020/12 Purdue University School of Materials Engineering Guest Researcher
2007/04 - 2010/03 The University of Tokyo The Graduate School of Engineering Department of Mechanical Engineering Assistant Professor

Committee career (14)：

2024/05 - 現在 The Japan Society for Computational Engineering Board Member
2016/07 - 現在 PVCS committee, High Pressure Institute, Japan Member
2016/07 - 現在日本高圧力技術協会圧力規格審議委員会委員
2024/04 - 2025/03 Materials & Mechanics Division, The Japan Society of Mechanical Engineers. Chair, Award Committee
2023/04 - 2025/03 Organizing Committee, Materials & Mechanics Division, The Japan Society of Mechanical Engineers. Member

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Awards (3)：

2016/05 - JSMS, committee on molecular dynamics Best Presentation Award
2006/05 - The 11th Molecular Dynamics Symposium Best Presentation Award for Students
2005/05 - International Anniversary Symposium on Molecular Dynamics Simulations 2005 MD Award (Best Poster)

Association Membership(s) (3)：

The Japan Society for Computational Engineering and Science , The Society of Materials Science, Japan , The Japan Society of Mechanical Engineers

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