Sakamoto Junji

サカモトジュンジ | Sakamoto Junji

Affiliation and department：

Research field (3)： Safety engineering , Social systems engineering , Machine materials and mechanics

Research keywords (4)： Fracture , Fatigue , Vibration , Fracture mechanics

Research theme for competitive and other funds (8)：

2024 - 2028 材料損傷による振動モード変化を応用した非破壊検査・長寿命化手法の開発
2021 - 2024 Prediction of deformation localization and fracture in polycrystalline titanium alloy based on 3D measurement of ultra-small inhomogeneous deformation
2020 - 2023 Investigation of vibration fatigue crack growth behavior and vibration fatigue strength improvement by peening
2021 - 2022 ネッキング型破壊の抑制とコーキシング効果の応用による微小金属材料の耐疲労特性向上方法の開発
2018 - 2021 Prediction of Development of Inhomogeneous Plastic Deformation and Fracture Based on Change in Elastic Height Distribution in Polycrystalline Metals

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Papers (40)：

坂本惇司, 多田直哉, 上森武. Fracture Morphology of Ti-6Al-4V Thin Wire Under Load-Controlled Fatigue Test. チタン. 2024. 72. 3. 39-43
Junji Sakamoto, Naoya Tada, Takeshi Uemori, Koyo Oishi. Effect of artificial defect on tensile properties of thin titanium alloy wire. Mechanical Engineering Journal. 2024. advpub
OKUI Kento, TADA Naoya, UEMORI Takeshi, SAKAMOTO Junji, SAKAKIBARA Keita. Relationship between cyclic tensile properties of cellulose nanofiber reinforced natural rubber and volume fraction of bound rubber obtained from swelling tests. Transactions of the JSME (in Japanese). 2024. 90. 932. 24-00008-24-00008
SAKAMOTO Junji, TADA Naoya, UEMORI Takeshi. Vibration change and crack propagation under bending vibration of aluminum alloy. Transactions of the JSME (in Japanese). 2024. 90. 930. 23-00246-23-00246
Naoya Tada, Takeshi Uemori, Junji Sakamoto. Prediction of slip activity of crystal grains around semi-circular and semi-elliptical notches in thin-sheet specimens of pure titanium using formulated macroscopic stress distribution and crystal orientation. Engineering Failure Analysis. 2023. 107623-107623

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MISC (2)：

Books (3)：

Lectures and oral presentations (70)：

Microscopic Plastic Deformation and Fracture Processes in Smooth Specimen of Ti-6Al-4V during Tensile Test
(日本機械学会中国四国支部総会・講演会講演論文集(CD-ROM) 2023)
Investigation on Deformation Constraint Near Fiber/Rubber Interface in Cellulose-Nanofiber-Reinforced Natural Rubber by Swelling Test
(日本機械学会中国四国支部総会・講演会講演論文集(CD-ROM) 2023)
Investigation on the Interface Bonding Strength of Fe-Al Joint Specimens Made by Forging
(日本機械学会中国四国支部総会・講演会講演論文集(CD-ROM) 2023)
Predictions of active slip system in polycrystalline pure titanium thin film using crystal plasticity finite element analysis
(日本機械学会中国四国支部総会・講演会講演論文集(CD-ROM) 2023)
Effect of Fine Particle Peening on Bending Vibration Life of Titanium Alloy
(日本機械学会中国四国支部総会・講演会講演論文集(CD-ROM) 2023)

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Education (3)：

2010 - 2013 Kyushu University Graduate School of Engineering Department of Mechanical Engineering
2009 - 2010 Kyushu University Graduate School of Engineering Department of Mechanical Engineering Science
2005 - 2009 Kyushu University School of Engineering Department of Mechanical and Aerospace Engineering

Professional career (1)：

Work history (9)：

2023/04 - 現在 Okayama University Assistant Professor
2021/04 - 2023/03 Okayama University Assistant Professor
2018/09 - 2021/03 Okayama University Graduate School of Natural Science & Technology Assistant Professor
2018/12 - 2019/03 Yokohama National University
2017/06 - 2018/08 Yokohama National University Institute of Advanced Sciences Assistant Professor

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Committee career (1)：

Association Membership(s) (3)：

THE SOCIETY OF MATERIALS SCIENCE, JAPAN , THE JAPAN SOCIETY OF MECHANICAL ENGINEERS , THE IRON AND STEEL INSTITUTE OF JAPAN

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