Azuma Koji 東康二

… Alternative Names

AZUMA Koji 東康二

東康二アズマコウジ

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Researcher Number	80320414
Other IDs
External Links
Affiliation (Current)	2025: 崇城大学, 工学部, 教授
Affiliation (based on the past Project Information) *help	2025: 崇城大学, 工学部, 教授 2013 – 2023: 崇城大学, 工学部, 教授 2010 – 2012: 崇城大学, 工学部, 准教授 2005 – 2006: 崇城大学, 工学部, 講師 2001 – 2003: 崇城大学, 工学部, 講師
Review Section/Research Field	Principal Investigator Basic Section 23010:Building structures and materials-related / Building structures/Materials / Building structures/materials / Building structures/materials Except Principal Investigator Basic Section 23010:Building structures and materials-related / Building structures/materials
Keywords	Principal Investigator 脆性破壊 / 塑性拘束 / 溶接欠陥 / 破壊評価 / 溶接接合部 / 建築構造・材料 / 鋼構造 / 有限要素解析 / 延性亀裂 / スカラップ … More / 破壊靱性 / 表面亀裂 / 表面欠陥 / 接合部詳細 / 機械切欠き / 破壊靭性 / 延性き裂 / 破壊モード / スカラップ底 / 終局耐力 / 破壊予測 / 柱梁接合部 / 内部欠陥 / 破壊評価線図 / FE解析 / 貫通亀裂 / 応力三軸度 / 貫通欠陥 / 溶接始終端 … More Except Principal Investigator 脆性破壊 / ワイブル応力 / 破壊靱性 / 溶接欠陥 / 欠陥 / FAD / 累積塑性変形能力 / シャルピー吸収エネルギー / 溶接接合部 / 累積疲労損傷度 / 破断サイクル数 / 繰返し負荷 / defect / crack / plastic constraint / beam-to-column connections / quality control / brittle fracture / welds / 現場熔接 / 熔接欠陥 / CTOD / 現場溶接 / J積分 / 延性亀裂 / きれつ / 塑性拘束 / 柱梁接合部 / 品質管理 / 熔接 Less

脆性破壊を抑制するストップホールを有する接合部詳細の最適化－接合部の品質管理基準Principal Investigator
- Principal Investigator
  
  東康二
- Project Period (FY)
  2025 – 2027
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 23010:Building structures and materials-related
- Research Institution
  Sojo University
Optimization of Weld Details to Avoid the Brittle Fractures at the Beam End with Field WeldingPrincipal Investigator
- Principal Investigator
  
  東康二
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 23010:Building structures and materials-related
- Research Institution
  Sojo University
Estimation Method of Accumulated Plastic Deformation Capacity with Charpy Absorbed Energy Considering Effects of Cyclic Loading and Plastic Constraint
- Principal Investigator
  
  岩下勉
- Project Period (FY)
  2022 – 2024
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 23010:Building structures and materials-related
- Research Institution
  Ariake National College of Technology
Optimization of connection detail of welded beam end based on the prediction approach of brittle fracturePrincipal Investigator
- Principal Investigator
  
  AZUMA Koji
- Project Period (FY)
  2019 – 2022
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 23010:Building structures and materials-related
- Research Institution
  Sojo University
Brittle Fracture Assessment of Welded Connections Considering Deterioration of Fracture Toughness due to Cyclic Loading
- Principal Investigator
  
  Iwashita Tsutomu
- Project Period (FY)
  2019 – 2021
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 23010:Building structures and materials-related
- Research Institution
  Ariake National College of Technology
Prediction of Ultimate Strength Determined by Brittle Fracture Initiating from Weld Defects - Quality Control Criterion of the ConnectionsPrincipal Investigator
- Principal Investigator
  
  AZUMA Koji
- Project Period (FY)
  2016 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Building structures/Materials
- Research Institution
  Sojo University
Prediction of ductile crack growth and initiation of brittle fracture from weld defects - Quality control criterion of the welded connectionPrincipal Investigator
- Principal Investigator
  
  AZUMA Koji
- Project Period (FY)
  2013 – 2015
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Building structures/Materials
- Research Institution
  Sojo University
Prediction of brittle fracture initiatedtoeast growing from weld defectsofductile cracksPrincipal Investigator
- Principal Investigator
  
  AZUMA Koji
- Project Period (FY)
  2010 – 2012
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Building structures/materials
- Research Institution
  Sojo University
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Principal Investigator
- Principal Investigator
  
  東康二
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Building structures/materials
- Research Institution
  Sojo University
溶接始終端の欠陥より成長する脆性破壊の教値シミュレーション-鉄骨の品質管理の改善を目指す-Principal Investigator
- Principal Investigator
  
  東康二
- Project Period (FY)
  2002 – 2003
- Research Category
  
  Grant-in-Aid for Young Scientists (B)
- Research Field
  
  Building structures/materials
- Research Institution
  Sojo University
Evaluation of Fracture Toughness of Field-Welded Joints Containing Defects--Targeting at Establishment of Optimum Quality Control Criteria for Steel Construction
- Principal Investigator
  
  KUROBANE Yoshiaki
- Project Period (FY)
  2001 – 2002
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  Building structures/materials
- Research Institution
  Sojo University

[Journal Article] 片側振幅による繰返し載荷を受ける鋼試験片の損傷度および累積塑性変形能力2023
- Author(s)
  赤木優羽, 泉裕介, 岩下勉, 東康二, 赤星拓哉
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 31 Pages: 515-522
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K04403
[Journal Article] Brittle fracture prediction method considering mixed modes for column-to-beam connections2023
- Author(s)
  Akahoshi Takuya、Azuma Koji、Shimizu Masaki、Iwashita Tsutomu
- Journal Title
  
  Journal of Constructional Steel Research
  
  Volume: 205 Pages: 107885-107885
- DOI
  10.1016/j.jcsr.2023.107885
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-23K13448, KAKENHI-PROJECT-22K04403, KAKENHI-PROJECT-22K04424
[Journal Article] 片側振幅による繰返し載荷を受ける鋼試験片の損傷度および累積塑性変形能力2023
- Author(s)
  赤木　優羽，泉裕介，岩下　勉，東　康二，赤星拓哉
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 31 Pages: 515-522
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22K04424
[Journal Article] Improvement of weld details to avoid brittle fracture initiating at the toes of weld access hole of the beam end - prediction of ultimate strength of welded joint with conventional detail2022
- Author(s)
  Azuma Koji、Iwashita Tsutomu、Itatani Toshiomi
- Journal Title
  
  Welding in the World
  
  Volume: 66 Issue: 9 Pages: 1929-1939
- DOI
  10.1007/s40194-022-01299-0
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] Brittle fracture estimation at ends of groove welded joints under cyclic loading2022
- Author(s)
  Iwashita, T., Hamasaki, M., Akahoshi, T., Azuma, K.
- Journal Title
  
  Journal of Constructional Steel Research
  
  Volume: 189 Pages: 107055-107055
- DOI
  10.1016/j.jcsr.2021.107055
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04721, KAKENHI-PROJECT-19K04699
[Journal Article] シャルピー吸収エネルギーを用いた累積塑性変形能力推定の試み2022
- Author(s)
  江島尚，赤木優羽，岩下勉，東康二，赤星拓哉
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 30 Pages: 615-623
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] Study on Establish a Brittle Fracture Prediction Considering Different Crack Opening Modes Using Mixed-Mode Ratio2021
- Author(s)
  Akahoshi, T., Azuma, K., Iwashita, T., Itatani, T.
- Journal Title
  
  Applied Mechanics
  
  Volume: 2 Issue: 4 Pages: 849-862
- DOI
  10.3390/applmech2040049
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K04721, KAKENHI-PROJECT-19K04699
[Journal Article] 梁フランジ溶接止端における脆性破壊発生時の累積塑性変形推定2021
- Author(s)
  濱崎瑞生, 岩下　勉, 東　康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 29 Pages: 638-645
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] 梁フランジ溶接止端における脆性破壊発生時の累積塑性変形推定2021
- Author(s)
  濵﨑瑞生，岩下　勉，東　康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 29 Pages: 638-645
- Data Source
  KAKENHI-PROJECT-19K04721
[Journal Article] 破壊靱性が異なる鋼試験片の脆性破壊発生時の累積塑性変形推定2021
- Author(s)
  田島やよい，岩下　勉，江島　尚，東　康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 29 Pages: 240-247
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04721
[Journal Article] 溶接始終端部のき裂開口モードの違いが脆性破壊発生に及ぼす影響を捉えるための基礎的研究2021
- Author(s)
  赤星拓哉, 東　康二, 岩下　勉
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 29 Pages: 682-688
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] 破壊靭性が異なる鋼試験片の脆性破壊発生時の累積塑性変形推定2021
- Author(s)
  田島やよい, 岩下　勉, 江島　尚, 東　康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 29 Pages: 240-247
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] 溶接欠陥から発生する脆性破壊のワイブル応力による予測2020
- Author(s)
  濵﨑瑞生，岩下　勉，東　康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 第28巻 Pages: 460-468
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04721
[Journal Article] 破壊靱性の異なる鋼試験片の切欠きから発生する脆性破壊予測2020
- Author(s)
  岩下　勉，東　康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 第28巻 Pages: 974-981
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04721
[Journal Article] 溶接欠陥から発生する脆性破壊のワイブル応力による予測2020
- Author(s)
  濵﨑瑞生，岩下勉，東康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 28 Pages: 460-468
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] 破壊靱性の異なる鋼試験片の切欠きから発生する脆性破壊予測2020
- Author(s)
  岩下勉，東康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 28 Pages: 974-981
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] Prediction of brittle fracture in notched specimens under cyclic loading2019
- Author(s)
  Iwashita, T., Azuma, K.
- Journal Title
  
  Journal of Constructional Steel Research
  
  Volume: 162 Pages: 1-15
- DOI
  10.1016/j.jcsr.2019.105721
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-19K04699
[Journal Article] 溶接 H 形鋼の加熱矯正工程の作業効率向上と鋼材特性に関する報告2018
- Author(s)
  安田匠汰，東康二，板谷俊臣，中村洋一，村山将広
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 26 Pages: 456-461
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K06595
[Journal Article] 切欠きから延性き裂を伴って発生する脆性破壊の損傷度2018
- Author(s)
  岩下勉，松田郁哉，東康二
- Journal Title
  
  鋼構造年次論文報告集
  
  Volume: 26 Pages: 709-715
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-16K06595
[Journal Article] Prediction of Brittle Fracture from Defects at Groove Face of Complete Joint Penetration Welded Joints2016
- Author(s)
  Azuma, K., Akahoshi, T., Iwashita, T.
- Journal Title
  
  Welding in the World, Int. J. of Materials Joining
  
  Volume: 60 Issue: 4 Pages: 1-10
- DOI
  10.1007/s40194-016-0334-8
- Peer Reviewed / Acknowledgement Compliant
- Data Source
  KAKENHI-PROJECT-25420600
[Journal Article] 異なる深さの疲労き裂あるいは機械切欠きを有する3点曲げ試験片の脆性破壊に関する研究2014
- Author(s)
  岩下　勉，小林良平，東　康二
- Journal Title
  
  鋼構造論文集
  
  Volume: Vol.21, No.82 Pages: 51-62
- NAID
  130005095639
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-25420600
[Journal Article] 欠陥を有する完全溶込み溶接始終端部から発生する脆性破壊塑性拘束が及ぼす影響2012
- Author(s)
  岩下勉,東康二
- Journal Title
  
  日本建築学会構造系論文集
  
  Volume: 77 Pages: 105-112
- NAID
  130004508109
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22560579
[Journal Article] Further experimental study on assessment of safety of beam-column connections with weld defects from brittle fracture2012
- Author(s)
  Azuma, K. and Iwashita, T.
- Journal Title
  
  Tubular Structures
  
  Volume: XIV Pages: 351-358
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22560579
[Journal Article] Effect ofPlastic Constraint on Brittle Fracture inSteel: Evaluation Using Toughness Scaling Model2012
- Author(s)
  Iwashita, T. and Azuma, K.
- Journal Title
  
  Journal of Structural Engineering, ASC
  
  Volume: 138 Issue: 6 Pages: 744-752
- DOI
  10.1061/(asce)st.1943-541x.0000507
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22560579
[Journal Article] 欠陥を有する完全溶込み溶接始終端部から発生する脆性破壊塑性拘束が及ぼす影響2011
- Author(s)
  岩下勉, 東康二
- Journal Title
  
  日本建築学会構造系論文集
  
  Volume: 77 Pages: 105-112
- NAID
  130004508109
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22560579
[Journal Article] Assessment of brittle fracture from defects using toughness scaling model2010
- Author(s)
  Iwashita, T., Azuma, K
- Journal Title
  
  Procs, 11th International Symposium on Tubular Structures
  
  Volume: ISTS XIII Pages: 515-522
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-22560579
[Journal Article] 柱梁溶接始終端部の欠陥から発生する脆性破壊の予測2007
- Author(s)
  東康二, 岩下勉
- Journal Title
  
  日本建築学会大会学術講演梗概集(九州) 構造III(発表予定)
- Data Source
  KAKENHI-PROJECT-17760464
[Journal Article] Assessment of Risk of Brittle Fracture for Beam-to-Column Connections with Weld Defects2006
- Author(s)
  Iwashita, T., Kurobane, Y., Azuma, K.
- Journal Title
  
  Proceedings, 10th International Symposium on Tubular Structures (発表予定)
- Data Source
  KAKENHI-PROJECT-17760464
[Journal Article] Applicability of Partial Joint Penetration Groove Welded Joints to Beam-to-RHS Column Connections and Assessment of Safety from Brittle Fracture2006
- Author(s)
  Azuma, K., Kurobane, Y., Iwashita, T., Dale, K.
- Journal Title
  
  Proceedings, 10th International Symposium on Tubular Structures (発表予定)
- Data Source
  KAKENHI-PROJECT-17760464
[Journal Article] Assessment of safety from brittle fracture initiating at tips of PJP groove welded joints2006
- Author(s)
  Azuma, K., Kurobane, Y., Iwashita, T., Dale, K.
- Journal Title
  
  Proceedings of 4th International Symposium on Steel Structures ISSS '06, Vol.1
  
  Pages: 186-197
- Data Source
  KAKENHI-PROJECT-17760464
[Journal Article] Full-scale Testing of Beam-to-RHS Column Connections with Partial Joint Penetration Groove Welded Joints and Assessment of Safety from Brittle Fracture2006
- Author(s)
  Azuma, K., Kurobane, Y., Iwashita, T., Dale, K.
- Journal Title
  
  Welding in the World Vol. 50, Issue 5/6(掲載確定)
- Data Source
  KAKENHI-PROJECT-17760464
[Journal Article] Applicability of Partial Joint Penetration Groove Welded Joints to Beam-to-RHS Column Connections and Assessment of Safety from Brittle Fracture2006
- Author(s)
  Azuma, K., Kurobane, Y., Iwashita, T., Dale, K.
- Journal Title
  
  Proceedings, 11th International Symposium on Tubular Structures ISTS XI
  
  Pages: 611-619
- Data Source
  KAKENHI-PROJECT-17760464
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究（その3 片側振幅による損傷度評価）2024
- Author(s)
  赤木優羽, 泉裕介, 岩下勉, 赤星拓哉, 東康二
- Organizer
  日本建築学会九州支部研究発表会
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究（その4 シャルピー吸収エネルギーによる検討）2024
- Author(s)
  泉裕介, 赤木優羽, 岩下勉, 赤星拓哉, 東康二
- Organizer
  日本建築学会九州支部研究発表会
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] 溶接始終端部およびスカラップ底から発生する破壊に対するモードの影響を加味した予測　その2　混合モード比を用いた予測精度改善方法2023
- Author(s)
  志水昌樹，荒木優汰，赤星拓哉，東　康二，岩下　勉
- Organizer
  日本建築学会大会
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] Effect of Different Modes on Fracture Prediction Using Weibull Stress to Predict Brittle Fracture from Defects at Beam-to-Column Connections2023
- Author(s)
  Shimizu, M. ,Akahoshi T., Azuma, K., Iwashita, T.
- Organizer
  The 33rd International Ocean and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] 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 Detail2023
- Author(s)
  Koji AZUMA, Takuya AKAHOSHI, Tsutomu IWASHITA, Toshiomi ITATANI
- Organizer
  IIW Annual Assembly
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] 溶接始終端部およびスカラップ底から発生する破壊に対するモードの影響を加味した予測　-その1-柱梁接合部を模した試験体の破断実験2023
- Author(s)
  荒木優汰, 志水昌樹, 赤星拓哉, 東康二, 岩下勉
- Organizer
  溶接学会全国大会
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究（その4 シャルピー吸収エネルギーによる検討）2023
- Author(s)
  泉　裕介，赤木　優羽，岩下　勉，赤星拓哉，東　康二
- Organizer
  日本建築学会九州支部研究発表会
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究（その3　片側振幅による損傷度評価）2023
- Author(s)
  赤木　優羽，泉　裕介，岩下　勉，赤星拓哉，東　康二
- Organizer
  日本建築学会九州支部研究発表会
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] 溶接始終端部およびスカラップ底から発生する破壊に対するモードの影響を加味した予測－その1－柱梁接合部を模した試験体の破断実験2023
- Author(s)
  荒木優汰, 志水昌樹, 赤星拓哉, 東康二, 岩下勉
- Organizer
  溶接学会秋季全国大会
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] Improvement of weld details to avoid brittle fracture at the I-section beam-to-square hollow section column connections2023
- Author(s)
  Azuma, K.
- Organizer
  Hungary-Korea-Japan Joint Seminar on Design, Fabrication, and Maintenance of Welded Steel Structures
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究その2 シャルピー吸収エネルギーを用いた推定手法の検討2023
- Author(s)
  江島尚, 赤木優羽, 岩下勉, 赤星拓哉, 東康二
- Organizer
  日本建築学会九州支部研究報告，第62号
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] 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 Cracks2023
- Author(s)
  Koike, S., Azuma, K., Akahoshi, T., Iwashita, T., Itatani, T.
- Organizer
  The 33rd Int. Ocean and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究（その１）片側振幅が脆性破壊に与える影響2023
- Author(s)
  赤木優羽，江島尚，岩下勉，赤星拓哉，東康二
- Organizer
  日本建築学会九州支部
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究その1 片側振幅が脆性破壊に与える影響2023
- Author(s)
  赤木優羽, 江島尚, 岩下勉, 赤星拓哉, 東康二
- Organizer
  日本建築学会九州支部研究報告，第62号
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] Effect of Different Modes on Fracture Prediction Using Weibull Stress to Predict Brittle Fracture from Defects at Beam-to-Column Connections2023
- Author(s)
  Shimizu, M., Akahoshi, T., Azuma, K., Iwashita, T.
- Organizer
  The 33rd Int. Ocean and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] 繰返し載荷を受ける切欠きを有する鋼試験片の累積塑性変形能力の推定に関する研究（その2）シャルピー吸収エネルギーを用いた推定手法の検討2023
- Author(s)
  江島尚，赤木優羽，岩下勉，赤星拓哉，東康二
- Organizer
  日本建築学会九州支部
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 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 Cracks2023
- Author(s)
  Koike, S., Azuma, K., Akahoshi, T., Iwashita, T., Itatani, T.
- Organizer
  The 33rd International Ocean and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04424
[Presentation] 溶接始終端部およびスカラップ底から発生する破壊に対するモードの影響を加味した予測その 2 混合モード比を用いた予測精度改善方法2023
- Author(s)
  志水昌樹, 荒木優汰, 赤星拓哉, 東康二, 岩下勉
- Organizer
  日本建築学会大会学術講演会
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] シャルピー吸収エネルギーと3点曲げ試験における破壊靭性Jcの関係およびワイブル応力に関する研究2022
- Author(s)
  江島　尚，岩下　勉，赤星拓哉，東　康二
- Organizer
  日本建築学会九州支部研究報告
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] シャルピー吸収エネルギーと3点曲げ試験における破壊靭性Jcの関係およびワイブル応力に関する研究2022
- Author(s)
  江島尚, 岩下勉, 東康二, 赤星拓哉
- Organizer
  日本建築学会九州支部
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] Optimization of shapes of weld access holes at the end of I-section beams based on the prediction approach for brittle fracture2022
- Author(s)
  Gotanda, S., Azuma, K., Iwashita, T., Itatani, T.
- Organizer
  32nd International Ocean and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 曲げとせん断を同時に受けるき裂材のモード混合率に関する解析的検討2022
- Author(s)
  志水昌樹, 赤星拓哉, 東康二
- Organizer
  日本建築学会九州支部
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] モードⅡの影響を受ける延性き裂に起因する破壊の予測手法の検討2022
- Author(s)
  赤星拓哉，東康二，五反田慧，志水昌樹，岩下勉
- Organizer
  溶接学会
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] Study on correcting method for predicting brittle fracture of surface cracked plates in mixed-mode loading2022
- Author(s)
  Akahoshi, T., Azuma, K., Iwashita
- Organizer
  41st Int. Conference on Ocean, Offshore & Arctic Engineering
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] 繰返し負荷を受ける切欠きを有する鋼試験片のJ積分値を用いた脆性破壊予測手法に関する検討2022
- Author(s)
  田島やよい，岩下　勉，東　康二
- Organizer
  日本建築学会九州支部研究報告
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] 溶接始終端部から発生する脆性破壊に混合モード比が及ぼす影響の検討その1　柱梁接合部を模した試験体の脆性破壊再現実験2022
- Author(s)
  赤星拓哉，志水昌樹，東康二，岩下勉
- Organizer
  日本建築学会
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] 繰返し負荷を受ける切欠きを有する鋼試験片のJ積分値を用いた脆性破壊予測手法に関する検討2022
- Author(s)
  田島やよい, 岩下勉, 東康二
- Organizer
  日本建築学会九州支部
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 溶接始終端部から発生する脆性破壊に混合モード比が及ぼす影響の検討その2　混合モード比が破壊予測精度に及ぼす影響2022
- Author(s)
  志水昌樹，赤星拓哉，東康二，岩下勉
- Organizer
  日本建築学会
- Data Source
  KAKENHI-PROJECT-22K04403
[Presentation] Weibull stress approach considering a mixed-mode problem for prediction of brittle fracture from notches at the butt weld of the beam end2021
- Author(s)
  Akahoshi T, Azuma, K., Iwashita, T., Ibe Y
- Organizer
  International Ocean and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] 溶接始終端部の欠陥から発生する脆性破壊の予測に関する研究　繰返し載荷を受ける試験体の塑性変形能力推定2021
- Author(s)
  濵﨑瑞生，岩下勉，東康二
- Organizer
  日本建築学会
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 溶接始終端部のき裂開口モードの違いが脆性破壊発生に及ぼす影響を捉えるための基礎的研究2021
- Author(s)
  赤星拓哉, 東康二, 岩下勉, 板谷俊臣
- Organizer
  日本建築学会
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] フランジ開先面の融合不良から発生する脆性破壊の予測に関する研究　その 2　繰返し載荷を受ける試験体の累積塑性変形能力推定方法2021
- Author(s)
  濵﨑瑞生，岩下　勉，赤星拓哉，東　康二
- Organizer
  日本建築学会大会学術講演梗概集
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] 繰返し負荷を受ける切欠きを有する鋼試験片の脆性破壊に関する研究　温度変化による破壊靱性の違いが脆性破壊に及ぼす影響2021
- Author(s)
  田島やよい，岩下　勉，東　康二
- Organizer
  日本建築学会九州支部研究報告
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] Improvement of weld details to avoid brittle fracture initiating at the toes of weld access hole of the beam end2021
- Author(s)
  Azuma, K., Iwashita, T., Itatani, T.
- Organizer
  IIW Annual Assembly
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 溶接始終端部の欠陥から発生する脆性破壊の予測に関する研究　繰返し載荷を受ける試験体の塑性変形能力推定2021
- Author(s)
  濵﨑瑞生，岩下　勉，東　康二
- Organizer
  日本建築学会九州支部研究報告
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] 溶接継手梁フランジ開先面の融合不良から発生する脆性破壊の予測に関する研究2021
- Author(s)
  岩下勉, 濵﨑瑞生, 赤星拓哉, 東康二
- Organizer
  日本建築学会
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 溶接継手梁フランジ開先面の融合不良から発生する脆性破壊の予測に関する研究　その 1　累積塑性変形能力推定方法2021
- Author(s)
  岩下　勉，濵﨑瑞生，赤星拓哉，東　康二
- Organizer
  日本建築学会大会学術講演梗概集
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] 溶接始終端部のき裂開口モードの違いが脆性破壊発生に及ぼす影響を捉えるための基礎的研究2021
- Author(s)
  赤星拓哉，東　康二，岩下　勉，板谷俊臣
- Organizer
  日本建築学会大会学術講演梗概集
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] Weibull stress approach considering a mixed-mode problem for prediction of brittle fracture from notches at the butt weld of the beam end2021
- Author(s)
  Akahoshi, T., Azuma, K., Iwashita, T., Ibe, Y.
- Organizer
  31st International Ocean and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 繰返し負荷を受ける切欠きを有する鋼試験片の脆性破壊に関する研究　温度変化による破壊靱性の違いが脆性破壊に及ぼす影響2021
- Author(s)
  田島やよい，岩下勉，東康二
- Organizer
  日本建築学会
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 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6 破壊靱性および試験温度の違いによる検討2020
- Author(s)
  岩下　勉，東　康二
- Organizer
  日本建築学会大会学術講演梗概集
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] 繰返し負荷を受ける切欠きを有する鋼試験片の脆性破壊発生に関する研究－破壊靭性の違いによる考察－2020
- Author(s)
  松田郁哉，岩下　勉，東　康二
- Organizer
  日本建築学会九州支部
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] 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6 破壊靱性および試験温度の違いによる検討2020
- Author(s)
  岩下勉，東康二
- Organizer
  日本建築学会
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 溶接始終端部の貫通欠陥から発生する脆性破壊の予測に関する研究－ワイブル応力による検討－2020
- Author(s)
  濵﨑瑞生，岩下　勉，東　康二
- Organizer
  日本建築学会九州支部
- Data Source
  KAKENHI-PROJECT-19K04721
[Presentation] Prediction of brittle fracture of at the Toes of Weld Access Hole of the welded I-section Beam End2019
- Author(s)
  Junwei Wang, Koji Azuma, Tsutomu Iwashita, Toshiomi Itatani
- Organizer
  29th Int. Offshore and Polar Engineering Conf.
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] 繰返し負荷を受ける切欠きを有する鋼試験片の脆性破壊発生に関する研究－破壊靱性の違いによる考察－2019
- Author(s)
  松田郁哉，岩下勉，東康二
- Organizer
  2018年度日本建築学会九州支部研究報告
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] Effects of Cyclic Loading on Plastic Deformation Capacity for Notched Specimens with Brittle Fracture2019
- Author(s)
  Iwashita, T., Azuma, K.
- Organizer
  The Pacific Structural Steel Conference
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] Prediction of brittle fracture of at the Toes of Weld Access Hole of the welded I-section Beam End2019
- Author(s)
  Wang, J., Azuma, K., Iwashita, T., Itatani, T.
- Organizer
  International Offshore and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] Prediction of Brittle Fracture at the Crack tips of Improved Weld Access Hole of Full-scale Beam-to-Column Assembly2019
- Author(s)
  Satoshi Jimbo, Koji Azuma, Toshiomi Itatani, Masato Nikaido
- Organizer
  29th Int. Offshore and Polar Engineering Conf.
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] Prediction of Brittle Fracture at the Crack tips of Improved Weld Access Hole of Full-scale Beam-to-Column Assembly2019
- Author(s)
  Jimbo, S., Azuma, K., Itatani, T., Nikaido, M.
- Organizer
  International Offshore and Polar Engineering Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] A Study on Occurrence of Brittle Fracture of Steel Notched Specimens under Cyclic Loading with Different Fracture Toughness2019
- Author(s)
  Matsuda, F., Iwashita, T., Azuma, K.
- Organizer
  International Symposium on Plasticity and Impact Mechanics
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] Improvement of the Work Efficiency and Optimization of the Material Properties in Heating Correction Processes of Welded I-section Steels2019
- Author(s)
  Azuma, K., Yasuda, S., Itatani, T., Nakamura, Y., Murayama, M.
- Organizer
  International Institute of Welding
- Data Source
  KAKENHI-PROJECT-19K04699
[Presentation] 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2018
- Author(s)
  岩下勉，東康二
- Organizer
  2018年度日本建築学会大会学術講演会
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] Prediction of Brittle Fracture from Notches at the Toes of Butt Weld and Weld Access Hole of the Beam End2018
- Author(s)
  Azuma K., Akahoshi T., Iwashita T., Itatani, T.
- Organizer
  International Institute of Welding
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] 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2017
- Author(s)
  小宮慎二，岩下勉，東康二
- Organizer
  2017年度日本建築学会大会
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] 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2017
- Author(s)
  岩下勉，小宮慎二，立野文，東康二
- Organizer
  2017年度日本建築学会大会
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] Effects of Cyclic Loading on Brittle Fracture in Steel Notched Specimens with Different Toughness2017
- Author(s)
  Iwashita, T., Azuma, K.
- Organizer
  14th International Conference on Fracture
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] Cumulative Damage of Notched Specimens with Brittle Fracture under Cyclic Loading2017
- Author(s)
  Iwashita, T., Tateno, A., Azuma. K.
- Organizer
  16th International Symposium on Tubular Structures
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] Effects of Cyclic Loading on Brittle Fracture in Steel Notched Specimens with Different Fracture Toughness2017
- Author(s)
  Iwashita, T., Azuma, K.
- Organizer
  14th International Conference on Fracture
- Place of Presentation
  Rhodes, Greece
- Year and Date
  2017-06-18
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-16K06595
[Presentation] Effects of Cyclic Loading on Occurrence of Brittle Fracture of Notched Specimens2015
- Author(s)
  Iwashita, T., Azuma, K.
- Organizer
  15th International Symposium on Tubular Structures
- Place of Presentation
  Rio de Janeiro, Brazil
- Year and Date
  2015-05-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] 溶接始終端部の欠陥から進展した延性き裂起点とする脆性破壊の予測2015
- Author(s)
  赤星拓哉，東康二，岩下勉
- Organizer
  日本建築学会九州支部
- Place of Presentation
  熊本県立大学（熊本県熊本市）
- Year and Date
  2015-03-01
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] 完全溶込溶接始終端部の欠陥から発生する脆性破壊の予測手法の検討2015
- Author(s)
  赤星拓哉，東康二，岩下勉
- Organizer
  2015年度日本建築学会大会学術講演会
- Place of Presentation
  東海大学湘南キャンパス（神奈川県平塚市）
- Year and Date
  2015-09-04
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] Application of the Weibull Stress Approach to the Prediction of Brittle Fracture Originating from Defects at the Ends of Groove-Welded Joints2015
- Author(s)
  Iwashita, T., Azuma, K.
- Organizer
  15th International Symposium on Tubular Structures
- Place of Presentation
  Rio de Janeiro, Brazil
- Year and Date
  2015-05-27
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] Prediction of brittle fracture initiating at defects in the end of complete joint penetration groove welds2015
- Author(s)
  Akahoshi, T., Azuma, K., Iwashita , T.
- Organizer
  25th International Offshore and Polar Engineering Conference
- Place of Presentation
  Hawaii, USA
- Year and Date
  2015-06-21
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] Assessment of brittle fracture for single edge notched bend specimens with different machined-notch depth2013
- Author(s)
  Iwashita, T., Kobayashi, R. and Azuma,K.
- Organizer
  32ndInt. Conf. on Ocean, Offshore and Arctic Engineering
- Place of Presentation
  Nantes, France
- Year and Date
  2013-06-11
- Data Source
  KAKENHI-PROJECT-22560579
[Presentation] Furtherexperimental study on assessment of safety of beam-column connections with weld defects from brittle fracture2012
- Author(s)
  Azuma, K. and Iwashita, T.
- Organizer
  Symposium on Tubular Structures
- Place of Presentation
  London, UK
- Year and Date
  2012-09-12
- Data Source
  KAKENHI-PROJECT-22560579
[Presentation] 異なる深さの機械切欠きを有する3点曲げ試験片の脆性破壊に関する研究-ワイブル応力による検討-2012
- Author(s)
  小林良平, 岩下勉, 東康二
- Organizer
  日本建築学会九州支部
- Place of Presentation
  北九州市
- Year and Date
  2012-03-04
- Data Source
  KAKENHI-PROJECT-22560579
[Presentation] Brittle fracture of single edge notched bend specimens with different machined-notch depth2012
- Author(s)
  Kobayashi, R., Iwashita, T. and Azuma, K.
- Organizer
  International Symposium on Technology for Sustainability,
- Place of Presentation
  Bangkok, Thailand
- Data Source
  KAKENHI-PROJECT-22560579
[Presentation] 完全溶込溶接始終端部の欠陥から発生する脆性破壊の予測手法の検討
- Author(s)
  赤星拓哉，東康二，岩下勉
- Organizer
  日本建築学会
- Place of Presentation
  東海大学（神奈川県平塚市）
- Year and Date
  2015-09-04 – 2015-09-06
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] Prediction of brittle fracture initiating at defects in the end of complete joint penetration groove welds
- Author(s)
  Akahoshi, T., Azuma, K. and Iwashita, T.
- Organizer
  The International Society of Offshore and Polar Engineers
- Place of Presentation
  Hawaii （USA)
- Year and Date
  2015-06-21 – 2015-06-26
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] Prediction of Brittle Fracture from Defects at　Weld Terminations of CJP Groove Welded Joints
- Author(s)
  K.Azuma
- Organizer
  International Institute of Welding
- Place of Presentation
  Essen, Germany
- Data Source
  KAKENHI-PROJECT-25420600
[Presentation] 溶接始終端の表面欠陥を起点とする脆性破壊の数値シミュレーション
- Author(s)
  坂本高穂，東康二，岩下勉
- Organizer
  日本建築学会九州支部
- Place of Presentation
  大分
- Data Source
  KAKENHI-PROJECT-22560579

1. IWASHITA Tsutomu (10332090)

# of Collaborated Projects: 7 results

# of Collaborated Products: 90 results
2. 赤星拓哉 (40848454)

# of Collaborated Projects: 2 results

# of Collaborated Products: 22 results
3. KUROBANE Yoshiaki (30040372)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Azuma Koji 東 康二

AZUMA Koji 東 康二

東 康二 アズマ コウジ

Research Projects

Research Products

Co-Researchers

脆性破壊を抑制するストップホールを有する接合部詳細の最適化－接合部の品質管理基準Principal Investigator

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Optimization of Weld Details to Avoid the Brittle Fractures at the Beam End with Field WeldingPrincipal Investigator

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Estimation Method of Accumulated Plastic Deformation Capacity with Charpy Absorbed Energy Considering Effects of Cyclic Loading and Plastic Constraint

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Optimization of connection detail of welded beam end based on the prediction approach of brittle fracturePrincipal Investigator

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Brittle Fracture Assessment of Welded Connections Considering Deterioration of Fracture Toughness due to Cyclic Loading

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Prediction of Ultimate Strength Determined by Brittle Fracture Initiating from Weld Defects - Quality Control Criterion of the ConnectionsPrincipal Investigator

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Prediction of ductile crack growth and initiation of brittle fracture from weld defects - Quality control criterion of the welded connectionPrincipal Investigator

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Prediction of brittle fracture initiatedtoeast growing from weld defectsofductile cracksPrincipal Investigator

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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Principal Investigator

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溶接始終端の欠陥より成長する脆性破壊の教値シミュレーション-鉄骨の品質管理の改善を目指す-Principal Investigator

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Evaluation of Fracture Toughness of Field-Welded Joints Containing Defects--Targeting at Establishment of Optimum Quality Control Criteria for Steel Construction

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[Journal Article] 片側振幅による繰返し載荷を受ける鋼試験片の損傷度および累積塑性変形能力2023

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[Journal Article] Brittle fracture prediction method considering mixed modes for column-to-beam connections2023

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DOI

Azuma Koji 東康二

AZUMA Koji 東康二

東康二アズマコウジ