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J-GLOBAL ID：200901037072636189   Update date: Feb. 20, 2024

Ohashi Tetsuya

オオハシ テツヤ | Ohashi Tetsuya
Affiliation and department：
Kitami Institute of Technology

About Kitami Institute of Technology


Research field  (3)： Structural and functional materials ,  Inorganic materials ,  Machine materials and mechanics
Research keywords  (6)： continuum mechanics ,  numerical analysis ,  plastic slip deformation ,  lattice defects ,  dislocations ,  strength of materials
Research theme for competitive and other funds  (17)：
  • 2018 - 2023 Multi-scale modeling and experimental study for the mechanism of hydrogen embrittlement based on the theory of crack-tip shielding by dislocations
  • 2017 - 2020 Metallurgy of precipitation aiming at ductility enhancement: Fabrication and characterization of core-shell structured particle dispersion steels
  • 2011 - 2016 Materials Science on Synchronized LPSO Structure - Innovative Development to Next-generation Lightweigt-structural Materials -
  • 2011 - 2016 Study of deformation and mechanical properties of the LPSO structure by multi scale computational mechanics
  • 2010 - 2014 Structure analysis of lattice defects in near bulk specimens combining high-voltage electron microscopy and electron energy loss spectroscopy.
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Papers (46)：
  • Okuyama Yelm, Ohashi Tetsuya. Crystal Plasticity Analysis on the Fundamental Processes of Strain Localization and Damage Formation in Pure Iron Polycrystals under Cyclic Fatigue. Tetsu-to-Hagane. 2024. 110. 3. 321-332
  • Yelm Okuyama, Masaki Tanaka, Tetsuya Ohashi, Tatsuya Morikawa. Modelling and crystal plasticity analysis for the mechanical response of alloys with non-uniformly distributed secondary particles. ISIJ International. 2020. 60. 8. 1819-1828
  • SATO Michihiro, OHASHI Tetsuya, KAWANO Yoshiki. Crystal plasticity analysis of the suppression of dislocation accumulation during the production process of semiconductor devices. Transactions of the JSME (in Japanese). 2020. 86. 884. 19-00457-19-00457
  • Tetsuya Ohashi, Yelm Okuyama. Density evolution of atomic vacancies in copper single crystals during initial stage of fatigue deformation. Philosophical Magazine. 2019. 99. 24. 3032-3058
  • Yoshiki Kawano, Tetsuya Ohashi, Tsuyoshi Mayama, Masaki Tanaka, Yelm Okuyama, Michihiro Sato. Investigation of strain redistribution mechanism in α titanium by image-based crystal plasticity analysis. European Physical Journal B. 2019. 92
ｍore...
MISC (124)：
  • 大橋鉄也, 奥山彫夢, 田中將己. Density Evolution of Atomic Vacancy by Plastic Deformation -Crystal Plasticity Analysis based on Dislocations-. ぷらすとす. 2023. 6. 61
  • 奥山彫夢, 大橋鉄也, 眞山剛. A new model of critical resolved shear stress with the effect of geometrical relationship between slip plane and microstructure interface. 日本機械学会M&M材料力学カンファレンス(CD-ROM). 2022. 2022
  • 奥山彫夢, 大橋鉄也, 田中將己. Thee-dimensional distribution of the GN dislocation density in dispersion hardening alloys; crystal plasticity analysis. 日本機械学会M&M材料力学カンファレンス(CD-ROM). 2021. 2021
  • 奥山彫夢, 大橋鉄也, 田中將己. Crystal plasticity analysis of three dimensional GN dislocation distribution density in dispersion hardening steel. 材料とプロセス(CD-ROM). 2021. 34. 2
  • 奥山彫夢, 大橋鉄也. Crystal plasticity analysis of non-uniform plastic deformation behavior in core-shell structured dispersion strengthened alloy. 材料とプロセス(CD-ROM). 2020. 33. 2
ｍore...
Books (3)：
  • Microstructural evolusion in single crystal Ni-base superalloys during high temperature creep
    Institute of Physics Publicaiton 2001
  • Microstructural evolusion in single crystal Ni-base Superalloys during high temperature creep
    Institute of Physics Publicaiton 2001
  • A Continuum Mechanics Approach to The Thermal Deformation of GaAs/Si Heterojunctions
    Springer Proceedings of Physics 1991
Education (4)：
  • - 1981 Hokkaido University
  • - 1981 Hokkaido University Graduate School, Division of Engineering
  • - 1974 Hokkaido University School of Engineering Department of Mechanical Engineering
  • - 1974 Hokkaido University Faculty of Engineering
Professional career (1)：
  • PhD (Hokkaido University)
Work history (8)：
  • 1991 - 1999 Hitachi, Ltd., Hitachi Research Laboratory
  • 1991 - 1999 Hitachi Research Laboratory, Hitachi, Ltd.
  • 1997 - 1998 科学技術庁金属材料技術研究所
  • 1997 - 1998 National Research Institute for Metals.
  • 1995 - 1996 日立専門専修学校 非常勤講師
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Committee career (2)：
  • 1997 - 1998 日本金属学会 会報編集委員
  • 1993 - 日本機械学会 第1技術委員会委員,論文査読委員
Awards (2)：
  • 1995 - 日本金属学会技術開発賞
  • 1995 - New technology award, Japan Institute of Metals
Association Membership(s) (12)：
日本材料学会 ,  日本鉄鋼協会 ,  日本計算工学会 ,  American Association of Advancement of Science ,  Materials Research Society ,  日本金属学会 ,  日本機械学会 ,  American association for advancement of science ,  Japan society of materials science ,  The iron and steel institute of Japan ,  Japan institute of metals ,  Japan society for mechanical engineers
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