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J-GLOBAL ID:202101019569945530   Update date: Sep. 28, 2024

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  (10): Impact Strength ,  Hydrogen Embrittlement ,  Classical Molecular Dynamics ,  Continuum Dislocation Dynamics ,  Peridynamics ,  Interatomic Potential ,  Steel ,  Materials Strength at High Temperature ,  Finite Element Method ,  First Principles Calculation
Research theme for competitive and other funds  (6):
  • 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
  • 2022 - 2025 鋼板の貫通評価式に関するJIS開発
  • 2021 - 2024 The development of machine-learning based prediction and evaluation of neutron embrittlement by computational science
  • 2016 - 2019 構造健全性評価の信頼性向上に向けた計算科学基盤の構築と破壊挙動の解明
  • 2008 - 2010 Control of Structural and Adsorption Properties of Diamond-Like Carbon Films by Adding Various Elements
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Papers (57):
  • 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
more...
MISC (1):
  • Tomohisa Kumagai. Atomic Structures of Amorphous Carbon Film Generated by Computer Simulations. Tribologist. 2013. 58. 9. 622-627
Lectures and oral presentations  (113):
  • Effect of Strain Rate on Hydrogen Embrittlement in SCM435 Steel
    (JSME Materials and Processing Symposium 2024 2024)
  • Strain Rate Dependence of Tensile Properties and Strain-induced Martensitic Formation in SUS304
    (14th INTERNATIONAL CONFERENCE on MECHANICAL and PHYSICAL BEHAVIOUR of MATERIALS under DYNAMIC LOADING (DYMAT2024) 2024)
  • Investigation of diffusion behavior and activation energies of Self-Interstitial Atoms in α-iron using machine learning interatomic potential
    (16th World Congress on Computational Mechanics and 4th Pan American Congress on Computational Mechanics 2024)
  • Investigation of diffusion behavior and activation energies of self-interstitial atoms in alpha-iron using machine learning interatomic potential
    (2024)
  • 機械学習を利用した計算科学による照射損傷予測・脆化評価技術の整備
    (第2 回若手研究グループ 「原子力エネルギー用材料研究会」 2024)
more...
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 (4):
  • 2018/11 - 電力中央研究所 理事長表彰
  • 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
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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