Rchr
J-GLOBAL ID：200901056196948558   Update date: Apr. 03, 2024

Iwashita Tsutomu

イワシタ ツトム | Iwashita Tsutomu
Affiliation and department：
National Institute of Technology, Ariake College Architecture Cource

About National Institute of Technology, Ariake College Architecture Cource


Job title： Professor
Homepage URL  (1)： http://www.ar.ariake-nct.ac.jp/iwashita/iwashita.html
Research field  (2)： Structural and functional materials ,  Building structures and materials
Research keywords  (7)： Steel Structure ,  Welded Connection ,  Brittle Fracture ,  Fracture Mechanics ,  Friction Damper ,  Finite Element Analysis ,  Wood Connection
Research theme for competitive and other funds  (15)：
  • 2022 - 2025 Optimization of Weld Details to Avoid the Brittle Fractures at the Beam End with Field Welding
  • 2022 - 2025 Estimation Method of Accumulated Plastic Deformation Capacity with Charpy Absorbed Energy Considering Effects of Cyclic Loading and Plastic Constraint
  • 2022 - 2023 並進運動を伴う回転摩擦ダンパーの力学的特性と制震効果
  • 2021 - 2022 並進運動を伴う回転摩擦ダンパーの力学的特性と制震効果
  • 2019 - 2022 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
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Papers (72)：
  • Shintaro Tahara, Koshiro Iwaya, Tsutomu Iwashita, Katsuhiko Goto, Minoru Yamanari. Strength Estimation and Fundamental Characteristics of the New Rotational Friction Damper with Translational Movement. Machines. 2024. 12. 1
  • Damage Level and Cumulative Plastic Deformation Capacity of Steel Specimens Subjected to Cyclic Loading with Pulsating Cycle. The JSSC Proceedings of Constructional Steel. 2023. 31. 515-522
  • Strength Estimation Model of the Rotational Friction Damper with Translational Movement without Pin Joints. The JSSC Proceedings of Constructional Steel. 2023. 31. 499-507
  • 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. ISOPE-I-23-439
  • 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. ISOPE-I-23-437
ｍore...
MISC (9)：
  • Tahara, S, Kameya, T, Iwashita, T, Goto, K, Yamanari M. Fundamental Characteristics of the Rotational Friction Damper with Translational Movement. The 1st KOSEN Research International Symposium (KRIS 2023). 2023. 212-212
  • Godai Motoume, Tsutomu Iwashita. Fundamental Characteristics of the Rotational Friction Damper with Friction Materials and Disc Springs. Proceedings of International Symposium on Innovative Engineering 2020. 2020. 3-8
  • Yayoi Tashima, Tsutomu Iwashita. Effects of Fracture Toughness due to Temperature Difference on Brittle Fractures in Steel. Proceedings of International Symposium on Innovative Engineering 2020. 2020. 15-19
  • Hamasaki, M, Iwashita, T. Prediction of Rotation Capacity at Brittle Fracture from Defects in Beam-to-Column Connections -Numerical study with the Weibull stress approach-. Proceedings of International Symposium on Innovative Engineering 2019. 2019
  • Komiya, S, Iwashita, T. Effects of Cyclic Loading on Brittle Fracture in Steel Notched Specimens -Evaluation of Cumulative Ductility and Cumulative Damage-. Proceedings of International Symposium on Innovative Engineering. 2018. 51-56
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Books (1)：
  • Report on the Damage Investigation of the 2016 Kumamoto Earthquakes
    Architectural Institute of Japan 2018
Lectures and oral presentations  (101)：
  • CNC加工機で製作した腰掛鎌継ぎのクリアランスが剛性や強度におよぼす影響に関する検討
    (日本建築学会九州支部研究報告,第63号,pp.577-580 2024)
  • ピン接合を必要としない並進運動を伴う回転摩擦ダンパーの開発に関する基礎的研究(その5 接触コマによる長孔部変形抑制の検討)
    (日本建築学会九州支部研究報告,第63号,pp.349-352 2024)
  • ピン接合を必要としない並進運動を伴う回転摩擦ダンパーの開発に関する基礎的研究(その4 耐力推定と長孔部の変形)
    (日本建築学会九州支部研究報告,第63号,pp.345-348 2024)
  • 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)
    (日本建築学会九州支部研究報告,第63号,pp.321-324 2024)
  • 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)
    (日本建築学会九州支部研究報告,第63号,pp.317-320 2024)
ｍore...
Works (1)：
  • 英語で授業をするためのWeb教材(2014年度)
    岩下 勉, 名での共同制作 2014 -
Education (4)：
  • - 2003 Kumamoto University
  • - 2000 Kumamoto University
  • - 1998 Kumamoto University Faculty of Engineering Department of Architecture and Building Engineering
  • - 1996 Ariake National College of Technology Dept. of Architecture
Professional career (1)：
  • Ph.D. (Kumamoto University)
Work history (4)：
  • 2000/04 - 現在 National Institute of Technology, Ariake College Architecture
  • 2018/04 - 2019/03 Nagasaki Institute of Applied Science
  • 2014/04 - 2015/03 Faculty Development Program
  • 2010/03 - 2011/02 University of Toronto Visiting Professor
Committee career (9)：
  • 2022/10 - 現在 全国鉄骨評価機構 鉄骨製作工場性能評価員
  • 2021/10 - 現在 日本鉄骨評価センター 鉄骨製作工場性能評価員
  • 2018/07 - 現在 日本建築学会九州支部災害委員会
  • 2015 - 現在 福岡県建築鉄骨協議会
  • 2003 - 現在 日本建築学会九州支部 構造委員会
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Awards (1)：
  • 2015/09 - The 9th International Symposium on Advances in Technology Education. Lectureship Award. Faculty Development Program for Nurturing Global Education and Research Abilities
Association Membership(s) (2)：
日本鋼構造協会 ,  日本建築学会
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