Rchr
J-GLOBAL ID:200901060314106009   Update date: Aug. 28, 2024

Azuma Koji

アズマ コウジ | Azuma Koji
Affiliation and department:
Job title: Professor
Research field  (1): Building structures and materials
Research keywords  (3): Steel Structure ,  Welding ,  Brittle Fracture
Research theme for competitive and other funds  (13):
  • 2022 - 2025 Estimation Method of Accumulated Plastic Deformation Capacity with Charpy Absorbed Energy Considering Effects of Cyclic Loading and Plastic Constraint
  • 2022 - 2025 Optimization of Weld Details to Avoid the Brittle Fractures at the Beam End with Field Welding
  • 2019 - 2022 Brittle Fracture Assessment of Welded Connections Considering Deterioration of Fracture Toughness due to Cyclic Loading
  • 2019 - 2021 脆性破壊の予測手法に基づく梁端溶接部の接合部詳細の最適化-接合部の品質管理基準
  • 2016 - 2019 Prediction of Brittle Fracture from Defects Considering Cyclic History Effects and Ductile Crack Growth: Estimation Method of Accumulated Plastic Deformation Capacity
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Papers (62):
  • K. Azuma, T. Akahoshi, T. Iwashita, T. Itatani. Improvement of Weld Details to Avoid Brittle Fracture Initiating at the Toes of Weld Access Hole of the Beam End - Part II. Prediction of Ultimate Strength of Welded Joint with Improved Detail. IIW Doc. XV-1666-2023. 2023. 1-13
  • Koike, S, Azuma, K, Akahoshi, T, Iwashita, T, Itatani, T. Optimization of Shapes of Weld Access Holes at the End of I-Section Beams Based on the Prediction Approach for Brittle Fracture - Part II. Effect of Propagation Direction of Ductile Cracks. Proceedings of the 33rd International Ocean and Polar Engineering Conference. 2023. 4
  • Shimizu, M, Akahoshi, T, Azuma, K, Iwashita, T. Effect of Different Modes on Fracture Prediction Using Weibull Stress to Predict Brittle Fracture from Defects at Beam-to-Column Connections. Proceedings of the 33rd International Ocean and Polar Engineering Conference. 2023. 4
  • Takuya Akahoshi, Koji Azuma, Masaki Shimizu, Tsutomu Iwashita. Brittle fracture prediction method considering mixed modes for column-to-beam connections. Journal of Constructional Steel Research. 2023. 205. 107885-107885
  • Gotanda, S, Azuma, K, Iwashita, T, Itatani, T. Optimization of shapes of weld access holes at the end of I-section beams based on the prediction approach for brittle fracture. Proceedings of the 32nd International Ocean and Polar Engineering Conference. 2022. 4. 2943-2949
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MISC (69):
Lectures and oral presentations  (71):
  • 71) 繰返し載荷を受ける切欠きを有する鋼試験片の塑性変形能力に関する研究 その5 ワイブル応力を用いた変形能力推定方法の検討
    (日本建築学会大会学術講演梗概集(東北) 2018)
  • 70) 繰返し載荷を受ける切欠きを有する鋼試験片の塑性変形能力に関する研究 その4 ワイブル応力による検討
    (日本建築学会大会学術講演梗概集(中国) 2017)
  • 69) 繰返し載荷を受ける切欠きを有する鋼試験片の塑性変形能力に関する研究 その 3 損傷度と延性き裂進展の検討
    (日本建築学会大会学術講演梗概集(中国) 2017)
  • 68) 修正圧縮場理論による長方形CFT極短柱のせん断耐力についての解析的研究
    (日本建築学会九州支部研究報告 第56号 ,pp.533-536 2017)
  • 67) 片側袖壁付き RC 柱の構造特性に関する研究
    (日本建築学会大会学術講演梗概集(福岡) , pp.13-14 2016)
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Works (4):
  • 脆性破壊に先行する延性不安定破壊の数値シミュレーション -溶接欠陥の品質管理基準
    2005 - 2007
  • Numerical simulation of unstable ductile fracture preceding brittle fracture
    2005 - 2007
  • 溶接止終端の欠陥より成長する脆性破壊の数値シミュレーション
    2002 - 2004
  • Numerical simulation of brittle cracks growing from weld defects at ends of groove welded joints
    2002 - 2004
Education (3):
  • 1996 - 1999 Kumamoto University Graduate School of Science and Technology
  • 1994 - 1996 Kumamoto University
  • 1990 - 1994 Kumamoto University Faculty of Engineering Department of Architecture and Building Engineering
Professional career (2):
  • Master of Engineering (Kumamoto University)
  • Doctor of Engineering (Kumamoto University)
Work history (4):
  • 2013/04 - 現在 Sojo University Department of Architecture, Faculty of Engineering Professor
  • 2009/04 - 2013/03 Sojo University Department of Architecture, Faculty of Engineering Associate Professor
  • 2001/04 - 2009/03 Sojo University Department of Architecture, Faculty of Engineering Lecturer
  • 1999/04 - 2001/03 Kumamoto Institute of Technology Department of Architecture Research Associate
Committee career (6):
  • 2021 - 現在 日本溶接会議 第XV委員会 委員長
  • 2021 - 現在 International Institute of Welding Commission XV, Delegate
  • 2008 - 現在 日本鉄鋼連盟 鋼構造九州地区サブネットワーク 運営委員
  • 2007 - 現在 International Institute of Welding Sub-commission XV-D, Chair
  • 2001 - 現在 日本建築学会九州支部 構造委員会 委員
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Association Membership(s) (2):
ARCHITECTURAL INSTITUTE OF JAPAN ,  JAPAN WELDING SOCIETY
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