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J-GLOBAL ID：200901091588188896   Update date: Mar. 06, 2024

Iwata Toshiaki

イワタ トシアキ | Iwata Toshiaki
Affiliation and department：
National Maritime Research Institute, National Institute of Maritime, Port and Aviation Technology

About National Maritime Research Institute, National Institute of Maritime, Port and Aviation Technology


Job title： Director of Structural and Industrial System Engineering Department
Homepage URL  (2)： http://www.nmri.go.jp/index.html ,  https://www.nmri.go.jp/en/
Research field  (4)： Marine and maritime engineering ,  Metallic materials ,  Manufacturing and production engineering ,  Machine materials and mechanics
Research keywords  (19)： Laser arc hybrid welding ,  structural adhesive ,  Fatigue strength improvement ,  Form Measurement ,  Deformation ,  Heat Bending ,  Line Heating ,  Stainless Steel ,  Aluminum ,  Stress Distribution ,  Residual Stress ,  Fatigue Test ,  Mechanical Properties ,  Fatigue Strength ,  Fatigue Design ,  Practical Investigation ,  Welded Joint ,  Shipbuilding ,  Titanium
Research theme for competitive and other funds  (5)：
  • 2019 - 2022 防食塗膜の影響を考慮した鋼/CFRP異種材構造接着継手の設計強度評価手法の構築
  • 2016 - 2020 Effect of stress ratio on fatigue strength and thickness effect of welded joint improved by HFMI
  • 2016 - 2019 Improvement of Fatigue Strength by Laser Irradiation in the Hull Construction
  • 2015 - 2018 Development of the long-term reliability evaluation technique of Steel/CFRP structural adhesive joint consisting of millimeters order thickness of adhesive layer for shipbuilding
  • 2012 - 2015 Development of optimum treatment method in the fatigue strength improvement
Papers (19)：
  • Shuichi Tsumura, Toshiaki Iwata, Toshio Niwa. Thickness effect on fatigue life of HFMI-treated welded joints under negative stress ratio. WELDING IN THE WORLD. 2023. 67. 9. 2261-2272
  • Hitoshi Hayashibara, Ryutaro Fueki, Norio Yamamoto, Tomohiro Sugimoto, Takahiro Ando, Shuichi Tsumura, Yosuke Anai, Chikahisa Murakami, Toshio Niwa, Toshiaki Iwata, et al. Surface Corrosion Fatigue Crack Growth Test in Accelerating Environment Where General Surface Corrosion Proceed in Parallel. Volume 3: Materials Technology; Pipelines, Risers, and Subsea Systems. 2023
  • Shuichi Tsumura, Yosuke Anai, Takahiro Ando, Toshiaki Iwata, Toshio Niwa. Improvement Effect of Fatigue Strength by HFMI Treatment under the Negative Stress Ratio Condition. Journal of the Japan Society of Naval Architects and Ocean Engineers. 2021. 34. 51-61
  • HAYASHIBARA Hitoshi, IWATA Toshiaki, ANDO Takahiro, MURAKAMI Chikahisa, MORI Eitarou, KOBAYASHI Ippei. Degradation of Structural Adhesive Bonding Joints on Ship Exposure Decks. Journal of Marine Science and Technology. 2019. 25. 510-519
  • IWATA Toshiaki, HAYASHIBARA Hitoshi. Durability and flammability evaluation of SGA structural adhesives joint consisting of thick adhesive layer for shipbuilding. The Journal of Adhesion. 2019. 95. 614-631
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MISC (77)：
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Education (4)：
  • 2019 - 2020 Kyushu University Graduate School of Engineering Doctoral Degree by Thesis Conferred
  • 1996 - 1999 Tokyo Metropolitan Institute of Technology Graduate School of Engineering, Division of Engineering Left university after the course without any degree, Engineering Systems
  • 1994 - 1996 Tokyo Metropolitan Institute of Technology Graduate School of Engineering, Division of Engineering Applied Dynamics Engineering
  • 1990 - 1994 Tokyo Metropolitan Institute of Technology Faculty of Engineering Department of Aerospace Engineering
Professional career (2)：
  • Master of Engineering (*Tokyo Metropolitan Institute of Technology*)
  • Doctor of Engineering (Kyushu University)
Work history (9)：
  • 2022/03 - 現在 National Institute of Maritime, Port and Aviation Technology Director of Structural and Industrial System Engineering Department
  • 2016/04 - 2022/03 National Institute of Maritime, Port and Aviation Technology Head of Research Group
  • 2015/04 - 2016/03 National Maritime Research Institute Head of Research Group
  • 2013/04 - 2015/03 National Maritime Research Institute Head of Research Group
  • 2007/04 - 2013/03 National Maritime Research Institute Senior Researcher
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Committee career (22)：
  • 2015/06 - 現在 Japan Light Metal Welding Association a director, the board of directors
  • 2013/06 - 現在 Japan Institute of Welding Commision XIII Fatigue of Welded Components and Structures
  • 2011/04 - 現在 Japan Titanium Society Ship Working Group of Construction & Ocean Engineering
  • 2011/01 - 現在 一般財団法人 日本船舶技術研究協会 小型高速艇アルミニウム艤装品設計基準規格原案作成WG 主査
  • 2010/08 - 現在 Japan Light Metal Welding Association Chairperson (from July 2015) at aluminum alloy ship committee
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Awards (2)：
  • 2008/04 - 独立行政法人 海上技術安全研究所 造船特殊技能研修用教材シリーズの完成に貢献した功績
  • 2006/04 - 独立行政法人 海上技術安全研究所 ぎょう鉄技能の伝承問題に係わる基盤技術の高度化に貢献した功績
Association Membership(s) (3)：
The Japan Society of Naval Architects and Ocean Engineers ,  Japan Light Metal Welding Association ,  Japan Welding Society
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