遊佐泰紀　Yusa, Yasunori

遊佐泰紀　Yusa, Yasunori

電気通信大学　大学院情報理工学研究科　機械知能システム学専攻　助教
Assistant Professor, Department of Mechanical and Intelligent Systems Engineering, Graduate School of Informatics and Engineering, The University of Electro-Communications

連絡先　Contact information

郵便　Mailing
182-8585　東京都調布市調布ケ丘 1-5-1
1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan
メール　Email
y y s @ e . c j . u a u c a . p

他のウェブサイト　Other websites

略歴　Brief personal history

2015 年 3 月東京大学大学院工学系研究科システム創成学専攻博士後期課程修了。博士（工学）。東京理科大学理工学部機械工学科助教（任期制）を経て、2019 年 10 月より電気通信大学大学院情報理工学研究科機械知能システム学専攻助教（テニュアトラック制）。研究対象は固体力学における計算手法、特に、非線形変形、亀裂、並列計算に関するもの。

In March 2015, he completed his Ph.D. in Engineering [Hakushi (Kogaku)] at the Department of Systems Innovation, Graduate School of Engineering, The University of Tokyo. After the completion, he worked as a non-tenured assistant professor at the Department of Mechanical Engineering, Faculty of Science and Technology, Tokyo University of Science. Since October 2019, he has been a tenure-track assistant professor at the Department of Mechanical and Intelligent Systems Engineering, Graduate School of Informatics and Engineering, The University of Electro-Communications. His research interests include computational methods in solid mechanics, especially those on nonlinear deformation, cracks, and parallel computing.

公表文献　Publications

雑誌論文（原著論文、総説、レター）　Journal papers (articles, reviews, and letters)
  1. Hiroki Suwa, Yasunori Yusa, Takashi Kuboki (June 2023). Parallel parametric analysis approach based on an s-version FEM for fracture mechanics analysis in designing hole positions. Mechanical Engineering Journal, Vol. 10, Issue 3, p. 22-00462.
  2. Yasunori Yusa, Tomoshi Miyamura, Jun Yin, Kuniaki Koike, Takashi Ikeda, Tomonori Yamada (December 2022). Partitioned coupling framework to combine a kinematic hardening plasticity model and a creep model for structures in a high-temperature environment. International Journal for Numerical Methods in Engineering, Vol. 123, Issue 24, pp. 6170–6196.
  3. Hiroshi Okada, Daichi Nakahara, Ayaka Nagashima, Rino Watanabe, Yusuke Sunaoka, Yasunori Yusa, Yuto Otoguro (December 2022). Singular patch method for linear elastic fracture mechanics analysis using isogeometric analysis. Mechanical Engineering Journal, Vol. 9, Issue 6, p. 22-00291.
  4. Yasunori Yusa, Hiroaki Kobayashi, Yuma Murakami, Hiroshi Okada (September 2022). Implementation of balancing domain decomposition method for parallel finite element analysis involving inactive elements. International Journal for Numerical Methods in Engineering, Vol. 123, Issue 17, pp. 3974–4000. Postprint
  5. Omar Tabaza, Hiroshi Okada, Yasunori Yusa (June 2022). A comprehensive investigation of the formulations of the interaction integral method for the evaluation of stress intensity factors of three-dimensional cracks in functionally graded materials. Theoretical and Applied Fracture Mechanics, Vol. 119, p. 103297.
  6. Omar Tabaza, Hiroshi Okada, Yasunori Yusa (October 2021). A new approach of the interaction integral method with correction terms for cracks in three-dimensional functionally graded materials using the tetrahedral finite element. Theoretical and Applied Fracture Mechanics, Vol. 115, p. 103065.
  7. Yasunori Yusa, Shota Miyauchi, Hiroshi Okada (June 2021). Performance investigation of quasi-Newton-based parallel nonlinear FEM for large-deformation elastic-plastic analysis over 100 thousand degrees of freedom. Mechanical Engineering Journal, Vol. 8, Issue 3, p. 21-00053.
  8. Hiroshi Okada, Tatsuro Ishizaka, Akira Takahashi, Koichiro Arai, Yasunori Yusa (September 2020). 3D J-integral evaluation for solids undergoing large elastic–plastic deformations with residual stresses and spatially varying mechanical properties of a material. Engineering Fracture Mechanics, Vol. 236, p. 107212. Postprint
  9. 佐藤皓明，遊佐泰紀，岡田裕（2019 年 11 月）．サイクルジャンプ法を用いた繰返し荷重問題解析の高精度化に関する研究（有限変形問題への拡張）．日本機械学会論文集，Vol. 85，Issue 879，p. 19-00299．
  10. Hiroshi Okada, Satoshi Kadowaki, Mitsumasa Suzuki, Yasunori Yusa (February 2019). J-integral computation for elastic-plastic materials with spatially varying mechanical properties. Engineering Fracture Mechanics, Vol. 207, pp. 181–202.
  11. Yasunori Yusa, Hiroshi Okada, Tomonori Yamada, Shinobu Yoshimura (December 2018). Scalable parallel elastic–plastic finite element analysis using a quasi-Newton method with a balancing domain decomposition preconditioner. Computational Mechanics, Vol. 62, Issue 6, pp. 1563–1581. Postprint
  12. 荒井皓一郎，岡田裕，遊佐泰紀（2018 年 11 月）．有限変形弾塑性問題に適用可能な J 積分範囲 ΔJ の三次元領域積分表示の提案．日本機械学会論文集，Vol. 84，Issue 867，p. 18-00309．
  13. Yasunori Yusa, Joe Okamoto, Daiji Toyama, Hiroshi Okada (October 2018). Analysis of a many-hole problem using coupling-matrix-free iterative s-version FEM with multiple local meshes. Mechanical Engineering Journal, Vol. 5, Issue 5, p. 18-00264.
  14. 河合浩志，遊佐泰紀，岡田裕，塩谷隆二，山田知典，吉村忍（2018 年 8 月）．ハイパフォーマンス・デザインパターンに基づく連続体力学分野向けテンソルライブラリの実装効率向上．日本計算工学会論文集，Vol. 2018，p. 20180012．
  15. Yasunori Yusa, Hiroshi Okada, Yosuke Yumoto (August 2018). Three-dimensional elastic analysis of a structure with holes using accelerated coupling-matrix-free iterative s-version FEM. International Journal of Computational Methods, Vol. 15, Issue 5, p. 1850036. Postprint
  16. 荒井皓一郎，岡田裕，遊佐泰紀（2018 年 7 月）．任意の荷重経路と有限変形を許容する新しい三次元 J 積分法の提案．日本機械学会論文集，Vol. 84，Issue 863，p. 18-00115．
  17. Takayuki Uomoto, Kohmei Satoh, Hiroshi Okada, Yasunori Yusa (November 2017). Mesh-independent data point finite element method (MDP-FEM) for large deformation elastic-plastic problems - an application to the problems of diffused necking. Finite Elements in Analysis and Design, Vol. 136, pp. 18–36.
  18. 佐藤皓明，遊佐泰紀，岡田裕（2017 年 10 月）．サイクルジャンプ法を用いた繰返し荷重問題解析の高精度化に関する研究．日本機械学会論文集，Vol. 83，Issue 854，p. 17-00300．
  19. Masahiro Nose, Hijiri Amano, Hiroshi Okada, Yasunori Yusa, Akira Maekawa, Masayuki Kamaya, Hiroshi Kawai (September 2017). Computational crack propagation analysis with consideration of weld residual stresses. Engineering Fracture Mechanics, Vol. 182, pp. 708–731.
  20. Yosuke Yumoto, Yasunori Yusa, Hiroshi Okada (October 2016). Element subdivision technique for coupling-matrix-free iterative s-version FEM and investigation of sufficient element subdivision. Mechanical Engineering Journal, Vol. 3, Issue 5, p. 16-00361.
  21. Yosuke Yumoto, Yasunori Yusa, Hiroshi Okada (October 2016). An s-version finite element method without generation of coupling stiffness matrix by using iterative technique. Mechanical Engineering Journal, Vol. 3, Issue 5, p. 16-00001.
  22. Hiroshi Kawai, Kohmei Satoh, Yasunori Yusa, Takayuki Uomoto, Ryuji Shioya, Hiroshi Okada (July 2015). AutoMT, a library for tensor operations and its performance evaluation for solid continuum mechanics applications. Mechanical Engineering Letters, Vol. 1, p. 15-00349.
  23. Yasunori Yusa, Shinobu Yoshimura (May 2014). Speedup of elastic–plastic analysis of large-scale model with crack using partitioned coupling method with subcycling technique. Computer Modeling in Engineering & Sciences, Vol. 99, Issue 1, pp. 87–104.
  24. Yasunori Yusa, Shinobu Yoshimura (April 2013). Mixed-mode fracture mechanics analysis of large-scale cracked structures using partitioned iterative coupling method. Computer Modeling in Engineering & Sciences, Vol. 91, Issue 6, pp. 445–461.
  25. Yasunori Yusa, Satsuki Minami, Hiroshi Kawai, Shinobu Yoshimura (October 2012). CG-based subdomain local solver with ICT factorization preconditioner for domain decomposition method. Journal of Computational Science and Technology, Vol. 6, Issue 3, pp. 157–168.
  26. 遊佐泰紀，片岡俊二，河合浩志，吉村忍（2012 年 7 月）．分離反復連成解法による大規模破壊力学解析．日本機械学会論文集 A 編，Vol. 78，Issue 791，pp. 966–975．
会議論文（会議録、抄録）　Conference papers (proceedings and abstracts)

会議論文は 100 編以上公表しているため、完全な一覧はありません。一部は Google Scholar Profile、ORCID、Web of Science ResearcherID、Scopus Author ID に記載されています。査読付きのものは以下の通りです。

Since more than 100 conference papers have been published, there is no complete list of them. Some of them can be found on the Google Scholar Profile, ORCID, Web of Science ResearcherID, and Scopus Author ID. The peer-reviewed ones are listed below.

査読付き会議論文　Peer-reviewed conference papers

  1. Ryunosuke Yakuno, Hiroki Suwa, Kazuhito Takahashi, Shohei Kajikawa, Yasunori Yusa, Takashi Kuboki (September 2023). Stress relief for crack prevention by adding holes to V-bending die. Proceedings of the 14th International Conference on the Technology of Plasticity, Vol. 4, pp. 348–358.
  2. Hiroshi Okada, Masayuki Kamaya, Yasunori Yusa (July 2019). Simplified SCC simulation considering growth arrest at fusion line of weld. Proceedings of the ASME 2019 Pressure Vessels and Piping Conference, Vol. 2, p. PVP2019-93516.
  3. Yasunori Yusa, Yuma Murakami, Hiroshi Okada (July 2019). Large-scale parallel thermal elastic-plastic welding simulation using balancing domain decomposition method. Proceedings of the ASME 2019 Pressure Vessels and Piping Conference, Vol. 2, p. PVP2019-93237.
  4. Koichiro Arai, Hiroshi Okada, Yasunori Yusa (July 2018). Formulation of three-dimensional J-integral for finite strain elastic-plastic fracture problems under any load histories (monotonic and cyclic loads). Proceedings of the ASME 2018 Pressure Vessels and Piping Conference, Vol. 2, p. PVP2018-84241.
  5. Hiroshi Okada, Manabu Kikuchi, Masahiro Ono, Yasunori Yusa, Masayuki Kamaya (July 2018). SCC propagation analyses in a welded joint under various assumed residual stresses and anisotropic SCC propagation law. Proceedings of the ASME 2018 Pressure Vessels and Piping Conference, Vol. 2, p. PVP2018-84238.
  6. Hiroshi Okada, Yasunori Yusa, Manabu Kikuchi, Masahiro Ono, Masayuki Kamaya, Akira Maekawa (August 2017). SCC propagation analysis under weld residual stress and anisotropic crack growth law. Proceedings of the IUTAM Symposium on Multi-scale Fatigue, Fracture and Damage of Materials in Harsh Environments, pp. 137–141.
解説等　Commentaries etc.
  1. 遊佐泰紀（2022 年 6 月）．遊佐泰紀研究室：機械のライフサイクルにわたる力学シミュレーション技術の創成．調布ネットワーク，Vol. 2022-1，pp. 18–19．
  2. 遊佐泰紀（2019 年 6 月）．有限要素法シミュレーションの並列計算法．理大科学フォーラム，Vol. 36，Issue 3，pp. 36–41．
  3. 遊佐泰紀（2019 年 3 月）．き裂を有する構造の効率的な大規模弾塑性有限要素法解析の探究．溶接学会誌，Vol. 88，Issue 2，pp. 112–115．

受賞　Awards

2023 年 9 月 9 日 日本計算力学奨励賞
遊佐泰紀		 The JACM Young Investigator Award
Yasunori Yusa
2021 年 3 月 22 日 2021 年度精密工学会春季大会学術講演会ベストプレゼンテーション賞
遊佐泰紀		 Best Presentation Award, 2021 JSPE Spring Meeting
Yasunori Yusa
2019 年 4 月 18 日 日本機械学会奨励賞（研究）
遊佐泰紀		 JSME Young Engineers Award
Yasunori Yusa
2016 年 5 月 27 日 日本計算工学会博士論文賞
遊佐泰紀		 The PhD Thesis Award, JSCES
Yasunori Yusa

担当授業科目　Courses

2020 年 4 月～現在 メカトロニクス基礎実験 A・知能機械工学基礎実験第一
2020 年 4 月～現在 メカトロニクス基礎実験 B・知能機械工学基礎実験第二

委員　Committee members

2018 年 4 月～2027 年 3 月 日本計算力学連合　事務局補佐 Secretary, Japan Association for Computational Mechanics (JACM)
2020 年 11 月～2025 年 12 月 Secretary, Asian Pacific Association for Computational Mechanics (APACM)
2022 年 4 月～2026 年 3 月 精密工学会　広報・情報部会　広報委員会　委員
2020 年 11 月～2024 年 10 月 第 26 回～第 29 回計算工学講演会　実行委員会　委員
2024 年 9 月 Member, Organizing Committee, KSME-JSME Joint Symposium on Computational Mechanics & CAE 2024
2025 年 7 月 Member, Local Organizing Committee, 4th International Conference on Computational Engineering and Science for Safety and Environmental Problems (COMPSAFE 2025)

関係しているもの　What he is involved in

作成したもの　What he created

HTML Canvas を用いた有限要素解析デモ　FEA demonstration using HTML Canvas

一様引張荷重を受ける円孔平板の応力集中係数は 3 になるはずである……。

The stress concentration factor of a circular hole in a flat plate subjected to a uniform tensile load should be 3—.