遊佐泰紀 Yusa, Yasunori

助教
Assistant Professor
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
Department of Mechanical and Intelligent Systems Engineering, Graduate School of Informatics and Engineering, The University of Electro-Communications
遊佐研究室
Yusa Laboratory

連絡先 Contact Information

郵便
Mailing
〒182-8585 東京都調布市調布ヶ丘 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

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)。2015 年 4 月東京理科大学理工学部機械工学科嘱託助教。2019 年 10 月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)。現在に至る。日本機械学会正員、日本計算工学会正会員、日本シミュレーション学会正会員、精密工学会正会員、日本計算力学連合会員。

Yasunori Yusa completed his Ph.D. in Engineering at the Department of Systems Innovation, The University of Tokyo in March 2015. From April 2015 to September 2019, he was employed by Tokyo University of Science, as a nontenured assistant professor of the Department of Mechanical Engineering. Since October 2019, he has been working at The University of Electro-Communications, where he is currently a tenure-track assistant professor of the Department of Mechanical and Intelligent Systems Engineering. Furthermore, he is a member of The Japan Society of Mechanical Engineers (JSME), The Japan Society for Computational Engineering and Science (JSCES), the Japan Society for Simulation Technology (JSST), The Japan Society for Precision Engineering (JSPE) and the Japan Association for Computational Mechanics (JACM).

対外発表 Publications and Presentations

査読付きジャーナル論文 Peer-reviewed Journal Articles
  1. Hiroshi Okada, Tatsuro Ishizaka, Akira Takahashi, Koichiro Arai, Yasunori Yusa. 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, 107212 (27 pp.), 2020. Webpage
  2. 佐藤皓明, 遊佐泰紀, 岡田裕. 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, no. 879, 19-00299 (19 pp.), 2019. Webpage
  3. Hiroshi Okada, Satoshi Kadowaki, Mitsumasa Suzuki, Yasunori Yusa. J-integral computation for elastic-plastic materials with spatially varying mechanical properties. Engineering Fracture Mechanics, vol. 207, pp. 181–202, 2019. Webpage
  4. Yasunori Yusa, Hiroshi Okada, Tomonori Yamada, Shinobu Yoshimura. Scalable parallel elastic–plastic finite element analysis using a quasi-Newton method with a balancing domain decomposition preconditioner. Computational Mechanics, vol. 62, no. 6, pp. 1563–1581, 2018. Webpage
  5. 荒井皓一郎, 岡田裕, 遊佐泰紀. 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, no. 867, 18-00309 (19 pp.), 2018. Webpage
  6. Yasunori Yusa, Joe Okamoto, Daiji Toyama, Hiroshi Okada. Analysis of a many-hole problem using coupling-matrix-free iterative s-version FEM with multiple local meshes. Mechanical Engineering Journal, vol. 5, no. 5, 18-00264 (13 pp.), 2018. Webpage
  7. 河合浩志, 遊佐泰紀, 岡田裕, 塩谷隆二, 山田知典, 吉村忍. 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, 20180012 (11 pp.), 2018. Webpage
  8. Yasunori Yusa, Hiroshi Okada, Yosuke Yumoto. 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, no. 5, 1850036 (35 pp.), 2018. Webpage
  9. 荒井皓一郎, 岡田裕, 遊佐泰紀. 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, no. 863, 18-00115 (18 pp.), 2018. Webpage
  10. Takayuki Uomoto, Kohmei Satoh, Hiroshi Okada, Yasunori Yusa. 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, 2017. Webpage
  11. 佐藤皓明, 遊佐泰紀, 岡田裕. 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, no. 854, 17-00300 (14 pp.), 2017. Webpage
  12. Masahiro Nose, Hijiri Amano, Hiroshi Okada, Yasunori Yusa, Akira Maekawa, Masayuki Kamaya, Hiroshi Kawai. Computational crack propagation analysis with consideration of weld residual stresses. Engineering Fracture Mechanics, vol. 182, pp. 708–731, 2017. Webpage
  13. Yosuke Yumoto, Yasunori Yusa, Hiroshi Okada. Element subdivision technique for coupling-matrix-free iterative s-version FEM and investigation of sufficient element subdivision. Mechanical Engineering Journal, vol. 3, no. 5, 16-00361 (11 pp.), 2016. Webpage
  14. Yosuke Yumoto, Yasunori Yusa, Hiroshi Okada. An s-version finite element method without generation of coupling stiffness matrix by using iterative technique. Mechanical Engineering Journal, vol. 3, no. 5, 16-00001 (12 pp.), 2016. Webpage
  15. Hiroshi Kawai, Kohmei Satoh, Yasunori Yusa, Takayuki Uomoto, Ryuji Shioya, Hiroshi Okada. AutoMT, a library for tensor operations and its performance evaluation for solid continuum mechanics applications. Mechanical Engineering Letters, vol. 1, 15-00349 (10 pp.), 2015. Webpage
  16. Yasunori Yusa, Shinobu Yoshimura. 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, no. 1, pp. 87–104, 2014. Webpage
  17. Yasunori Yusa, Shinobu Yoshimura. Mixed-mode fracture mechanics analysis of large-scale cracked structures using partitioned iterative coupling method. Computer Modeling in Engineering & Sciences, vol. 91, no. 6, pp. 445–461, 2013. Webpage
  18. Yasunori Yusa, Satsuki Minami, Hiroshi Kawai, Shinobu Yoshimura. CG-based subdomain local solver with ICT factorization preconditioner for domain decomposition method. Journal of Computational Science and Technology, vol. 6, no. 3, pp. 157–168, 2012. Webpage
  19. 遊佐泰紀, 片岡俊二, 河合浩志, 吉村忍. 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, no. 791, pp. 966–975, 2012. Webpage
国際会議プロシーディング International Conference Proceedings
  1. Yasunori Yusa, Yuma Murakami, Hiroshi Okada. Large-scale parallel thermal elastic-plastic welding simulation using balancing domain decomposition method. Proceedings of the ASME 2019 Pressure Vessels and Piping Conference, PVP2019-93237 (7 pp.), 2019 (with peer review). Webpage
  2. Hiroshi Okada, Masayuki Kamaya, Yasunori Yusa. Simplified SCC simulation considering growth arrest at fusion line of weld. Proceedings of the ASME 2019 Pressure Vessels and Piping Conference, PVP2019-93516 (10 pp.), 2019 (with peer review). Webpage
  3. Omar Tabaza, Hiroshi Okada, Yasunori Yusa. Computation of mixed mode stress intensity factors in 3D functionally graded material using tetrahedral finite element. Mechanisms and Machine Science (Proceedings of the International Conference on Computational & Experimental Engineering and Sciences 2019), vol. 75, pp. 83–90, 2019 (without peer review). Webpage
  4. Tomoshi Miyamura, Yasunori Yusa, Jun Yin, Kuniaki Koike, Takashi Ikeda, Tomonori Yamada. Implementation of combined Ohno-Wang nonlinear kinematic hardening model and Norton-Bailey creep model using partitioned stress integration technique. Mechanisms and Machine Science (Proceedings of the International Conference on Computational & Experimental Engineering and Sciences 2019), vol. 75, pp. 389–396, 2019 (without peer review). Webpage
  5. Hiroshi Okada, Manabu Kikuchi, Masahiro Ono, Yasunori Yusa, Masayuki Kamaya. 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, PVP2018-84238 (9 pp.), 2018 (with peer review). Webpage
  6. Koichiro Arai, Hiroshi Okada, Yasunori Yusa. 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, PVP2018-84241 (10 pp.), 2018 (with peer review). Webpage
  7. Hiroshi Okada, Yasunori Yusa, Manabu Kikuchi, Masahiro Ono, Masayuki Kamaya, Akira Maekawa. 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 2017, pp. 137–141, 2017 (with peer review).
  8. Yasunori Yusa, Shinobu Yoshimura. Analysis of cracked model under finite-strain elastoplasticity using partitioned coupling method. Proceedings of the 11th World Congress on Computational Mechanics, 5th European Conference on Computational Mechanics and 6th European Conference on Computational Fluid Dynamics, pp. 3988–3996, 2014 (without peer review).
  9. Yasunori Yusa, Shunji Kataoka, Hiroshi Kawai, Shinobu Yoshimura. Partitioned iterative coupling algorithm for large-scale mixed-mode computational fracture mechanics. Proceedings of the 4th International Conference on Computational Methods, 183 (8 pp.), 2012 (without peer review).
学会誌等記事 Society Articles
  1. 遊佐泰紀. 反復型重合メッシュ法を用いた欠陥を有する溶接継手の終局強度予測シミュレーション. 溶接技術, vol. 67, no. 12, pp. 96–97, 2019.
  2. 遊佐泰紀. 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, no. 3, pp. 36–41, 2019. Webpage
  3. 遊佐泰紀. 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, no. 2, pp. 112–115, 2019. Webpage
国際・国内会議発表 International and Domestic Conference Presentations
  1. Omar Tabaza, Hiroshi Okada, Yasunori Yusa. Computations of mixed mode stress intensity factors in 3D functionally graded material using the interaction integral method. 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems, online, December 2020.
  2. Yuki Sawada, Hiroshi Okada, Yasunori Yusa. Stable crack propagation analysis by the mesh-independent data point FEM (MDP-FEM) and a point based J-integral evaluation technique. 3rd International Conference on Computational Engineering and Science for Safety and Environmental Problems, online, December 2020.
  3. Hiroaki Kobayashi, Yuma Murakami, Yasunori Yusa, Hiroshi Okada. Study on an analysis methodology for metal additive manufacturing process using a large scale parallel finite element computation. 11th International Conference on Computational Methods, online, August 2020.
  4. Yuma Murakami, Yasunori Yusa, Hiroshi Okada. Parallel thermal elastic-plastic simulation by domain decomposition method using PC cluster (application to additive manufacturing). 7th Asian Pacific Congress on Computational Mechanics, Taipei, Taiwan, December 2019.
  5. Shunhua Chen, Shinobu Yoshimura, Kaworu Yodo, Naoto Mitsume, Yasunori Yusa, Tomonori Yamada, Chisachi Kato, Shori Orimo, Yoshinobu Yamade, Akiyoshi Iida. Development of a computational system for structural and fatigue analysis of a 5MW wind turbine blade under different wind loads. 7th Asian Pacific Congress on Computational Mechanics, Taipei, Taiwan, December 2019.
  6. Yuki Sawada, Hiroshi Okada, Yasunori Yusa. The analysis of ductile crack propagation using the MDP (mesh-independent data point). 7th Asian Pacific Congress on Computational Mechanics, Taipei, Taiwan, December 2019.
  7. Shungo Mizutani, Hiroshi Okada, Yasunori Yusa. Experimental and numerical studies on fatigue crack propagation in plates with weld beads and fabricated by a metal additive manufacturing. 7th Asian Pacific Congress on Computational Mechanics, Taipei, Taiwan, December 2019.
  8. Ayaka Nagashima, Hiroshi Okada, Yasunori Yusa. Research on two-dimensional linear elastic fracture mechanics analysis using isogeometric analysis (investigation of the stress singularity at the crack tips). 7th Asian Pacific Congress on Computational Mechanics, Taipei, Taiwan, December 2019.
  9. Omar Tabaza, Hiroshi Okada, Yasunori Yusa. Computations of mixed mode stress intensity factors for 3D crack in functionally graded material. 7th Asian Pacific Congress on Computational Mechanics, Taipei, Taiwan, December 2019.
  10. Hiroshi Okada, Tatsuro Ishizaka, Akira Takahashi, Koichiro Arai, Yasunori Yusa. Three-dimensional J-integral based on a domain integral method for non-homogeneous solid and/or prior-deformation histories undergoing large deformations. 7th Asian Pacific Congress on Computational Mechanics, Taipei, Taiwan, December 2019.
  11. 宮村倫司, 遊佐泰紀, 殷峻, 小池邦昭, 池田貴, 山田知典. 弾塑性構成則とクリープ構成則を組み合わせるためのフレームワーク. 日本機械学会第 32 回計算力学講演会, 川越, 2019 年 9 月.
  12. Shunhua Chen, Shinobu Yoshimura, Kaworu Yodo, Naoto Mitsume, Yasunori Yusa, Tomonori Yamada. Fatigue life estimation of a 5MW wind turbine blade under wind loads. 日本機械学会第 32 回計算力学講演会, 川越, 2019 年 9 月.
  13. Omar Tabaza, 岡田裕, 遊佐泰紀. 傾斜機能材料中のき裂問題に対する三次元相互積分法による応力拡大係数計算法の検討. 日本機械学会第 32 回計算力学講演会, 川越, 2019 年 9 月.
  14. 遊佐泰紀, 村上悠真, 岡田裕. 領域分割法を用いたマルチパス溶接シミュレーションの検討. 日本機械学会第 32 回計算力学講演会, 川越, 2019 年 9 月.
  15. Shunhua Chen, Shinobu Yoshimura, Kaworu Yodo, Naoto Mitsume, Yasunori Yusa, Tomonori Yamada, Chisachi Kato, Shori Orimo, Yoshinobu Yamade, Akiyoshi Iida. Structural and fatigue modeling of a 5MW wind turbine blade under different wind loads. 15th U.S. National Congress on Computational Mechanics, Austin, USA, July–August 2019.
  16. Yasunori Yusa, Daiji Toyama, Kazuma Ohashi, Hiroshi Okada. Large-deformation elastic-plastic analysis of a structure with local features using coupling-matrix-free iterative s-version FEM. 15th U.S. National Congress on Computational Mechanics, Austin, USA, July–August 2019.
  17. Hiroshi Okada, Koichiro Arai, Yasunori Yusa. Three-dimensional J-integral and ΔJ based on a domain integral method for finite strain elastic-plastic fracture problems under cyclic loads. 15th U.S. National Congress on Computational Mechanics, Austin, USA, July–August 2019.
  18. Yasunori Yusa, Yuma Murakami, Hiroshi Okada. Large-scale parallel thermal elastic-plastic welding simulation using balancing domain decomposition method. ASME 2019 Pressure Vessels and Piping Conference, San Antonio, USA, July 2019.
  19. Hiroshi Okada, Masayuki Kamaya, Yasunori Yusa. Simplified SCC simulation considering growth arrest at fusion line of weld. ASME 2019 Pressure Vessels and Piping Conference, San Antonio, USA, July 2019.
  20. 荒井皓一郎, 岡田裕, 遊佐泰紀. 有限変形弾塑性繰返し荷重問題に適用可能な新しい J 積分と J 積分範囲 ΔJ の提案と応用例. MSC Software 2019 Users Conference, 東京, 2019 年 7 月.
  21. Hiroshi Okada, Tatsuro Ishizaka, Akira Takahashi, Koichiro Arai, Yasunori Yusa. Three-dimensional J-integral based on a domain integral method for welded joints. 8th International Conference on Computational Methods for Coupled Problems in Science and Engineering, Sitges, Spain, June 2019.
  22. 遊佐泰紀, 宮内彰太, 岡田裕. 準 Newton 法に基づく高速な大変形弾塑性解析の研究. 第 24 回計算工学講演会, さいたま, 2019 年 5 月.
  23. 荒井皓一郎, 岡田裕, 佐々木由実, 坂部猛志朗, 遊佐泰紀. 有限変形弾塑性問題に適用可能な J 積分範囲 ΔJ の繰返し荷重下のき裂進展問題への適用. 第 24 回計算工学講演会, さいたま, 2019 年 5 月.
  24. 宮村倫司, 遊佐泰紀, 殷峻, 小池邦昭, 池田貴, 山田知典. 分離型応力積分手法による Ohno-Wang 非線形移動硬化則と Norton-Bailey クリープ則の実装方法の検討. 第 24 回計算工学講演会, さいたま, 2019 年 5 月.
  25. Shinobu Yoshimura, Tomonori Yamada, Shunhua Chen, Naoto Mitsume, Akiyoshi Iida, Chisachi Kato, Yoshinobu Yamade, Shori Orimo, Yasunori Yusa. Flow-induced vibration and fatigue damage of NREL5MW blade of offshore wind farm using K-Computer. 20th International Conference on Finite Elements in Flow Problems, Chicago, USA, March–April 2019.
  26. Yasunori Yusa, Tomoshi Miyamura, Tomonori Yamada, Shinobu Yoshimura. Development of large-scale finite element solver for wind turbine blade structure using balancing domain decomposition method. International Conference on Computational & Experimental Engineering and Sciences 2019, Tokyo, Japan, March 2019.
  27. Omar Tabaza, Hiroshi Okada, Yasunori Yusa. Computation of mixed mode stress intensity factors in 3D functionally graded material using tetrahedral finite element. International Conference on Computational & Experimental Engineering and Sciences 2019, Tokyo, Japan, March 2019.
  28. Tomoshi Miyamura, Yasunori Yusa, Jun Yin, Kuniaki Koike, Takashi Ikeda, Tomonori Yamada. Implementation of combined Ohno-Wang nonlinear kinematic hardening model and Norton-Bailey creep model using partitioned stress integration technique. International Conference on Computational & Experimental Engineering and Sciences 2019, Tokyo, Japan, March 2019.
  29. Shunhua Chen, Shinobu Yoshimura, Kaworu Yodo, Naoto Mitsume, Yasunori Yusa, Tomonori Yamada, Chisachi Kato, Shori Orimo, Yoshinobu Yamade, Akiyoshi Iida. A computational framework for structural and fatigue analysis of a 5MW wind turbine blade under wind loads. International Conference on Computational & Experimental Engineering and Sciences 2019, Tokyo, Japan, March 2019.
  30. Yuma Murakami, Yasunori Yusa, Hiroshi Okada. Parallel thermal elastic-plastic welding simulation by domain decomposition method using PC cluster. International Symposium on Joining Technologies in Advanced Automobile Assembly 2018, Kitakyushu, Japan, November 2018.
  31. Yasunori Yusa, Yuma Murakami, Hiroshi Okada. Development of large-scale thermal elastic-plastic solver based on domain decomposition method. International Symposium on Joining Technologies in Advanced Automobile Assembly 2018, Kitakyushu, Japan, November 2018.
  32. Hiroshi Okada, Yasunori Yusa. Computations of 3D fracture mechanics parameters for crack in welded joint and functionally graded material. International Symposium on Joining Technologies in Advanced Automobile Assembly 2018, Kitakyushu, Japan, November 2018.
  33. 遊佐泰紀, 村上悠真, 岡田裕. 領域分割法を用いた大規模熱弾塑性溶接シミュレータの開発. 日本機械学会第 31 回計算力学講演会, 徳島, 2018 年 11 月.
  34. 荒井皓一郎, 岡田裕, 遊佐泰紀. 領域積分法に基づく新しい三次元 J 積分と ΔJ 積分の定式化と数値解析例. 日本機械学会第 31 回計算力学講演会, 徳島, 2018 年 11 月.
  35. 澤田祐輝, 岡田裕, 遊佐泰紀. 積分点と独立な点群で変形履歴を保持する有限要素法解析手法に関する研究(大変形弾塑性き裂進展問題への適用). 日本機械学会第 31 回計算力学講演会, 徳島, 2018 年 11 月.
  36. 水谷駿吾, 岡田裕, 遊佐泰紀. 表面き裂の疲労き裂進展実験と解析. 日本機械学会第 31 回計算力学講演会, 徳島, 2018 年 11 月.
  37. Yusuke Ota, Kohmei Satoh, Tatsuya Oi, Hiroshi Okada, Yasunori Yusa. A research on the cycle jump method for the analyses of elastic-plastic problems subject to cyclic loads. 11th International Conference on Fracture and Strength of Solids, Yogyakarta, Indonesia, August 2018.
  38. Akira Takahashi, Koichiro Arai, Hiroshi Okada, Yasunori Yusa. A study on three-dimensional J-integral for finite strain elastoplasticity. 11th International Conference on Fracture and Strength of Solids, Yogyakarta, Indonesia, August 2018.
  39. Shota Miyauchi, Yasunori Yusa, Hiroshi Okada. Highly efficient large-deformation elastic-plastic parallel finite element crack analysis using a quasi-Newton method. 11th International Conference on Fracture and Strength of Solids, Yogyakarta, Indonesia, August 2018.
  40. Yasunori Yusa, Yuma Murakami, Shota Miyauchi, Hiroshi Okada. Large-scale thermal elastic-plastic welding analysis using domain decomposition method. 13th World Congress on Computational Mechanics and 2nd Pan American Congress on Computational Mechanics, New York, USA, July 2018.
  41. Hiroshi Okada, Tatsuro Ishizaka, Masahiro Ono, Yasunori Yusa. Computations of fracture mechanics parameters for 3D arbitrary shaped crack in welded joint and functionally graded material. 13th World Congress on Computational Mechanics and 2nd Pan American Congress on Computational Mechanics, New York, USA, July 2018.
  42. Shinobu Yoshimura, Tomonori Yamada, Naoto Mitsume, Akiyoshi Iida, Takanori Uchida, Chisachi Kato, Yoshinobu Yamade, Hiroshi Imamura, Yuko Ueda, Yasunori Yusa. Multiscale and multiphysics integrated simulations for offshore wind farm using K-computer, an overview. 13th World Congress on Computational Mechanics and 2nd Pan American Congress on Computational Mechanics, New York, USA, July 2018.
  43. Hiroshi Okada, Manabu Kikuchi, Masahiro Ono, Yasunori Yusa, Masayuki Kamaya. SCC propagation analyses in a welded joint under various assumed residual stresses and anisotropic SCC propagation law. ASME 2018 Pressure Vessels and Piping Conference, Prague, Czech Republic, July 2018.
  44. Koichiro Arai, Hiroshi Okada, Yasunori Yusa. Formulation of three-dimensional J-integral for finite strain elastic-plastic fracture problems under any load histories (monotonic and cyclic loads). ASME 2018 Pressure Vessels and Piping Conference, Prague, Czech Republic, July 2018.
  45. 大田悠介, 佐藤皓明, 大井達也, 岡田裕, 遊佐泰紀. 弾塑性繰返荷重問題へのサイクルジャンプ法の適用に関する研究. 第 23 回計算工学講演会, 名古屋, 2018 年 6 月.
  46. 遊佐泰紀, 宮村倫司, 山田知典, 吉村忍. 領域分割法を用いた風車ブレード構造の並列有限要素解析. 第 23 回計算工学講演会, 名古屋, 2018 年 6 月.
  47. 外山太治, 遊佐泰紀, 岡田裕. 結合剛性行列を生成しない反復型重合メッシュ法の弾塑性問題への適用. 第 23 回計算工学講演会, 名古屋, 2018 年 6 月.
  48. 大田悠介, 佐藤皓明, 大井達也, 岡田裕, 遊佐泰紀. サイクルジャンプ法を用いた繰返荷重弾塑性解析に関する研究. MSC Software 2018 Users Conference, 東京, 2018 年 5 月.
  49. Yasunori Yusa, Hiroshi Okada, Tomonori Yamada, Shinobu Yoshimura. Large-scale nonlinear solid mechanics analysis using domain decomposition method based on nonlinear solver. SIAM Conference on Parallel Processing for Scientific Computing 2018, Tokyo, Japan, March 2018.
  50. 鈴木隼人, 尾留川剛, 遊佐泰紀, 岡田裕. 重合メッシュ法の地下空洞解析への適用性に関する検討. 第 45 回岩盤力学に関するシンポジウム, 東京, 2018 年 1 月.
  51. 岡田裕, 能瀬雅広, 天野聖, 遊佐泰紀, 前川晃, 釜谷昌幸. 溶接残留応力を考慮した異材接合部の SCC(応力腐食割れ)進展解析に関する研究. 溶接構造シンポジウム 2017, 吹田, 2017 年 12 月.
  52. Masahiro Ono, Hiroshi Okada, Yasunori Yusa. Development of crack propagation analysis system taking into account welding residual stress and crack coalescence. 2nd International Conference on Computational Engineering and Science for Safety and Environmental Problems, Chengdu, China, October 2017.
  53. Daiji Toyama, Yasunori Yusa, Hiroshi Okada. Large-deformation analysis using coupling-matrix-free iterative s-version FEM with implicit nonlinear solution algorithm. 2nd International Conference on Computational Engineering and Science for Safety and Environmental Problems, Chengdu, China, October 2017.
  54. Yasunori Yusa, Hiroshi Okada, Tomonori Yamada, Shinobu Yoshimura. Large-scale elastic–plastic analysis of cracked structure using domain decomposition method with nonlinear solver. 2nd International Conference on Computational Engineering and Science for Safety and Environmental Problems, Chengdu, China, October 2017.
  55. Tatsuro Ishizaka, Hiroshi Okada, Yasunori Yusa, Kouji Chiba, Hidekazu Murakawa, Hisashi Serizawa, Masakazu Shibahara, Satoyuki Tanaka. Accuracy enhancement on the prediction of fracture mode of cross tension testing by using J-integral. 2nd International Conference on Computational Engineering and Science for Safety and Environmental Problems, Chengdu, China, October 2017.
  56. 鈴木力, 佐藤皓明, 遊佐泰紀, 岡田裕. 有限要素と独立な点群で変形履歴を記憶する大変形解析手法に関する研究(大変形弾塑性貫通き裂問題への適用). 日本機械学会第 30 回計算力学講演会, 東大阪, 2017 年 9 月.
  57. 荒井皓一郎, 遊佐泰紀, 岡田裕. 三次元非線形破壊力学評価のための J 積分. 日本機械学会第 30 回計算力学講演会, 東大阪, 2017 年 9 月.
  58. 高橋晶, 石坂達郎, 岡田裕, 遊佐泰紀, 村川英一, 芹澤久, 田中智行, 千葉晃司. 十字継手引張試験の J 積分評価の高精度化に関する研究. 日本機械学会第 30 回計算力学講演会, 東大阪, 2017 年 9 月.
  59. 遊佐泰紀, 岡田裕, 山田知典, 吉村忍. 非線形解法に基づく領域分割法を用いた並列弾塑性有限要素解析. 日本機械学会第 30 回計算力学講演会, 東大阪, 2017 年 9 月.
  60. 宮内彰太, 遊佐泰紀, 岡田裕. 領域分割法を用いた大規模溶接シミュレーションのための検討. 日本機械学会第 30 回計算力学講演会, 東大阪, 2017 年 9 月.
  61. Hiroshi Okada, Yasunori Yusa, Manabu Kikuchi, Masahiro Ono, Masayuki Kamaya, Akira Maekawa. SCC propagation analysis under weld residual stress and anisotropic crack growth law. IUTAM Symposium on Multi-scale Fatigue, Fracture and Damage of Materials in Harsh Environments 2017, Galway, Ireland, August–September 2017.
  62. Hiroshi Okada, Masahiro Ono, Koichiro Arai, Yasunori Yusa. Evaluation of J- and interaction integrals for fracture problems of welded joints. 14th U.S. National Congress on Computational Mechanics, Montreal, Canada, July 2017.
  63. Yasunori Yusa, Hiroshi Okada, Tomonori Yamada, Shinobu Yoshimura. Parallel elastic-plastic analysis using a domain decomposition method with a nonlinear solver. 14th U.S. National Congress on Computational Mechanics, Montreal, Canada, July 2017.
  64. Hiroshi Okada, Satoshi Kadowaki, Koichiro Arai, Yasunori Yusa. Evaluation of energy release rate for functionally graded materials undergoing elastic-plastic deformation. International Conference on Computational & Experimental Engineering and Sciences 2017, Funchal, Portugal, June 2017.
  65. 外山太治, 遊佐泰紀, 岡田裕. 結合剛性マトリクスを必要としない反復型重合メッシュ法の幾何学的非線形問題への適用. MSC Software 2017 Users Conference, 東京, 2017 年 6 月.
  66. 外山太治, 遊佐泰紀, 岡田裕. 反復型重合メッシュ法を用いた幾何学的非線形問題の解析. 第 22 回計算工学講演会, さいたま, 2017 年 5~6 月.
  67. 鈴木力, 神宮裕貴, 佐藤皓明, 遊佐泰紀, 岡田裕. 有限要素と独立な点群で変形履歴を記憶する大変形解析手法の研究(弾塑性貫通き裂問題への適用). 第 22 回計算工学講演会, さいたま, 2017 年 5~6 月.
  68. 遊佐泰紀, 宮村倫司, 山田知典, 吉村忍. 領域分割法による積層複合材料構造の並列有限要素解析と収束性調査. 第 22 回計算工学講演会, さいたま, 2017 年 5~6 月.
  69. 宮内彰太, 遊佐泰紀, 岡田裕. 領域分割法を用いた移動熱源問題の大規模熱伝導解析. 第 22 回計算工学講演会, さいたま, 2017 年 5~6 月.
  70. 佐藤皓明, 遊佐泰紀, 岡田裕. サイクルジャンプ法を用いた低サイクル疲労解析の高速化. 第 22 回計算工学講演会, さいたま, 2017 年 5~6 月.
  71. 高橋晶, 石坂達郎, 岡田裕, 遊佐泰紀, 村川英一, 芹澤久, 田中智行, 千葉晃司. き裂の存在を仮定した十字継手引張試験の大変形弾塑性解析と J 積分評価. 第 22 回計算工学講演会, さいたま, 2017 年 5~6 月.
  72. 大野雅広, 岡田裕, 遊佐泰紀. 溶接残留応力下における複数き裂の合体を考慮した進展解析. 第 22 回計算工学講演会, さいたま, 2017 年 5~6 月.
  73. Hiroshi Okada, Yasunori Yusa, Tatsuro Ishizaka, Masahiro Nose, Hijiri Amano. Fracture mechanics analyses for welded joints under the influences of weld residual stresses and temperature histories. JSME-KSME Joint Symposium on Computational Mechanics & CAE 2017, Busan, Korea, May 2017.
  74. 石坂達郎, 岡田裕, 遊佐泰紀, 千葉晃司, 村川英一, 芹澤久, 柴原正和, 田中智行. J 積分法を用いたスポット溶接部強度評価(十字引張試験)解析における解析条件の検討. 溶接学会平成 29 年度春季全国大会, 東京, 2017 年 4 月.
  75. 織茂勝利, 宮内彰太, 遊佐泰紀, 岡田裕. 領域分割法を用いた熱弾塑性問題の大規模並列有限要素解析. 日本機械学会関東支部第 23 期総会・講演会, 東京, 2017 年 3 月.
  76. 菊地学, 大野雅広, 遊佐泰紀, 岡田裕. き裂進展速度の異方性を考慮した溶接部の SCC き裂進展解析. 日本機械学会関東支部第 23 期総会・講演会, 東京, 2017 年 3 月.
  77. 神宮裕貴, 鈴木力, 佐藤皓明, 遊佐泰紀, 岡田裕. MDP-FEM を用いた大変形弾塑性・き裂進展問題の解析. 日本機械学会関東支部第 23 期総会・講演会, 東京, 2017 年 3 月.
  78. 荒井皓一郎, 門脇聖, 遊佐泰紀, 岡田裕. 大変形弾塑性問題や傾斜機能材料の J 積分計算に関する研究. 日本機械学会九州支部第 70 期総会・講演会, 佐賀, 2017 年 3 月.
  79. Tatsuro Ishizaka, Hiroshi Okada, Yasunori Yusa, Kouji Chiba, Hidekazu Murakawa, Hisashi Serizawa, Masakazu Shibahara, Satoyuki Tanaka. Fracture mechanics analysis system to evaluate failure mode of spot welded joint. International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation 2016, Suita, Japan, October 2016.
  80. 岡田裕, 門脇聖, 遊佐泰紀. 傾斜機能材料の J 積分評価に関する研究. 日本機械学会第 29 回計算力学講演会, 名古屋, 2016 年 9 月.
  81. 大野雅広, 鈴木力, 遊佐泰紀, 岡田裕. 破壊力学解析のための残留応力マッピング(要素・点群探索の高速化). 日本機械学会第 29 回計算力学講演会, 名古屋, 2016 年 9 月.
  82. 遊佐泰紀, 岡田裕, 吉村忍. 非線形解法に基づく領域分割法を用いた並列弾塑性有限要素解析の検討. 日本機械学会第 29 回計算力学講演会, 名古屋, 2016 年 9 月.
  83. 湯本洋介, 遊佐泰紀, 岡田裕. 結合剛性マトリクスを使用しない反復型重合メッシュ法. 日本機械学会 2016 年度年次大会, 福岡, 2016 年 9 月.
  84. Takeshi Chino, Hiroshi Okada, Yasunori Yusa, Yasushi Ichikawa, Aaron Bender, Hideyuki Ishii. Material modeling using generalized Maxwell model for golf ball material. 10th International Conference on Fracture and Strength of Solids, Tokyo, Japan, August–September 2016.
  85. Yasunori Yusa, Yosuke Yumoto, Hiroshi Okada. Coupling-matrix-free iterative s-version FEM accelerated by preconditioning and line-search techniques. 12th World Congress of Computational Mechanics and 6th Asian Pacific Congress on Computational Mechanics, Seoul, Korea, July 2016.
  86. Chikara Suzuki, Kohmei Satoh, Takayuki Uomoto, Hiroshi Okada, Yasunori Yusa. Finite strain elastic-plastic FEM analysis using mesh-independent data points (MDPs) to store deformation history data: problems of diffused necking of tensile bar and crack propagation. 12th World Congress of Computational Mechanics and 6th Asian Pacific Congress on Computational Mechanics, Seoul, Korea, July 2016.
  87. Masahiro Nose, Masahiro Ono, Takeo Ouchi, Hiroshi Okada, Yasunori Yusa. Crack propagation analyses under assumed residual stress field in a nozzle part of pressure vessel structure. ASME 2016 Pressure Vessels and Piping Conference, Vancouver, Canada, July 2016.
  88. 岡田裕, 遊佐泰紀, 湯本洋介. 結合剛性マトリクスを使用しない反復型重合メッシュ法の提案. MSC Software 2016 Users Conference, 東京, 2016 年 6 月.
  89. 鈴木力, 魚本貴之, 佐藤皓明, 遊佐泰紀, 岡田裕. 新しい物理量保持手法を導入した大変形有限要素法によるき裂問題解析. 第 21 回計算工学講演会, 新潟, 2016 年 5~6 月.
  90. 遊佐泰紀, 湯本洋介, 岡田裕. グローバルメッシュとローカルメッシュに異なる有限要素を用いる反復型重合メッシュ法解析. 第 21 回計算工学講演会, 新潟, 2016 年 5~6 月.
  91. 千野剛, 川辺聖哉, 松尾健人, 岡田裕, 遊佐泰紀, 市川八州史, Aaron Bender, 石井秀幸. 有限要素解析を用いたゴルフボール内部構造に対する設計最適化問題に関する検討. 第 21 回計算工学講演会, 新潟, 2016 年 5~6 月.
  92. 佐藤皓明, 遊佐泰紀, 岡田裕. 時系列マルチスケール手法を用いた低サイクル疲労解析の高速化. 第 21 回計算工学講演会, 新潟, 2016 年 5~6 月.
  93. 大野雅広, 能瀬雅広, 大内健央, 吉田健吾, 岡田裕, 遊佐泰紀. 配管継手溶接部内表面き裂の SCC き裂進展解析(複数き裂の進展及び合体). 第 21 回計算工学講演会, 新潟, 2016 年 5~6 月.
  94. Kohmei Satoh, Takahiro Uomoto, Chikara Suzuki, Yasunori Yusa, Hiroshi Okada. Large deformation elasto-plastic finite element analysis with remeshing using material points for deformation history storage. KSME-JSME Joint Symposium on Computational Mechanics & CAE 2015, Tokyo, Japan, October 2015.
  95. Yasunori Yusa, Shinobu Yoshimura. Linear and nonlinear analysis of cracked structures using partitioned coupling method. 3rd International Workshops on Advances in Computational Mechanics, Tokyo, Japan, October 2015.
  96. 山田海, 遊佐泰紀, 山田知典, 吉村忍. 分離型連成解法による複数のき裂を有する固体-固体連成解析の収束性能の向上. 日本機械学会第 28 回計算力学講演会, 横浜, 2015 年 10 月.
  97. 能瀬雅広, 岡田裕, 遊佐泰紀, 前川晃. 残留応力下でのき裂進展解析システムに関する研究. 日本機械学会第 28 回計算力学講演会, 横浜, 2015 年 10 月.
  98. 魚本貴之, 佐藤皓明, 遊佐泰紀, 岡田裕. 新しい変形履歴の保持手法を用いた有限要素法による拡散くびれ問題の解析. 日本機械学会第 28 回計算力学講演会, 横浜, 2015 年 10 月.
  99. 湯本洋介, 遊佐泰紀, 岡田裕. 反復型重合メッシュ法解析の提案. 日本機械学会第 28 回計算力学講演会, 横浜, 2015 年 10 月.
  100. 遊佐泰紀, 湯本洋介, 岡田裕. 反復型重合メッシュ法の三次元化. 日本機械学会第 28 回計算力学講演会, 横浜, 2015 年 10 月.
  101. Yasunori Yusa, Yosuke Yumoto, Hiroshi Okada, Shinobu Yoshimura. Iterative overlapped/non-overlapped global-local finite element methods for large-scale simulation. 6th International Conference on Welding Science and Engineering, Beijing, China, September 2015.
  102. Yasunori Yusa, Shinobu Yoshimura. Stabilizing large-deformation elastic-plastic analysis of cracked model with partitioned coupling method. 13th U.S. National Congress on Computational Mechanics, San Diego, USA, July 2015.
  103. Yasunori Yusa, Shinobu Yoshimura. Elastic-plastic analysis of cracked structure and performance estimation model with partitioned coupling method. International Conference on Computational & Experimental Engineering and Sciences 2015, Reno, USA, July 2015.
  104. 遊佐泰紀, 吉村忍. 分離型連成解法を用いたき裂付きモデルのソフトニング領域の大変形弾塑性解析. 第 20 回計算工学講演会, つくば, 2015 年 6 月.
  105. 山田海, 遊佐泰紀, 山田知典, 吉村忍. 分離型連成解法による複数のき裂を有する固体-固体連成解析の収束性能評価. 第 20 回計算工学講演会, つくば, 2015 年 6 月.
  106. 遊佐泰紀, 吉村忍. 分離型連成解法を用いた構造物の弾塑性破壊解析. 日本機械学会第 27 回計算力学講演会, 盛岡, 2014 年 11 月.
  107. 遊佐泰紀, 吉村忍. 分離型連成解法に基づくき裂付きモデルの弾塑性解析の高度化. 第 63 回理論応用力学講演会, 東京, 2014 年 9 月.
  108. Yasunori Yusa, Shinobu Yoshimura. Analysis of cracked model under finite-strain elastoplasticity using partitioned coupling method. 11th World Congress on Computational Mechanics, 5th European Conference on Computational Mechanics and 6th European Conference on Computational Fluid Dynamics, Barcelona, Spain, July 2014.
  109. 遊佐泰紀, 吉村忍. 分離型連成解法によるき裂材の大変形弾塑性解析. 第 19 回計算工学講演会, 広島, 2014 年 6 月.
  110. Yasunori Yusa, Shinobu Yoshimura. Elastic–plastic analysis of large-scale structure with a crack using partitioned coupling method. 1st International Conference on Computational Engineering and Science for Safety and Environmental Problems, Sendai, Japan, April 2014.
  111. Yasunori Yusa, Shinobu Yoshimura. Elasto-plastic fracture mechanics simulation using partitioned iterative coupling method. 5th Asian Pacific Congress on Computational Mechanics and 4th International Symposium on Computational Mechanics, Singapore, Singapore, December 2013.
  112. 遊佐泰紀, 吉村忍. 分離反復連成解法の弾塑性き裂問題への適用. 日本機械学会第 26 回計算力学講演会, 佐賀, 2013 年 11 月.
  113. Yasunori Yusa, Shinobu Yoshimura. Three-dimensional mixed-mode stress intensity factor analysis of large-scale cracked structure using partitioned iterative coupling method. 12th U.S. National Congress on Computational Mechanics, Raleigh, USA, July 2013.
  114. Shinobu Yoshimura, Yasunori Yusa. Fracture mechanics analysis of cracked structure with partitioned coupled approach. 2013 International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, 2013 International Conference on Materials and Reliability and 4th International Conference on Maintenance Engineering, Emeishan, China, July 2013.
  115. 塚原慎也, 遊佐泰紀, 吉村忍. 分離反復連成解法による 3 次元混合モードき裂進展シミュレーション. 第 18 回計算工学講演会, 東京, 2013 年 6 月.
  116. 遊佐泰紀, 塚原慎也, 吉村忍. 分離反復連成解法における仮想き裂閉口積分法の実装と性能評価. 第 18 回計算工学講演会, 東京, 2013 年 6 月.
  117. 遊佐泰紀, 片岡俊二, 河合浩志, 吉村忍. 分離反復連成解法を用いた複雑形状モデルの固体・固体連成解析. 第 62 回理論応用力学講演会, 東京, 2013 年 3 月.
  118. Yasunori Yusa, Shunji Kataoka, Hiroshi Kawai, Shinobu Yoshimura. Partitioned iterative coupling algorithm for large-scale mixed-mode computational fracture mechanics. 4th International Conference on Computational Methods, Gold Coast, Australia, November 2012.
  119. Yasunori Yusa, Shunji Kataoka, Hiroshi Kawai, Shinobu Yoshimura. Crack propagation analysis of three-dimensional complex-shaped model using partitioned iterative coupling algorithm. JSME-CMD International Computational Mechanics Symposium 2012, Kobe, Japan, October 2012.
  120. 遊佐泰紀, 片岡俊二, 河合浩志, 吉村忍. 分離反復連成解法を用いた応力拡大係数に基づく三次元疲労き裂進展シミュレーション. 日本機械学会 M&M2012 材料力学カンファレンス, 松山, 2012 年 9 月.
  121. Yasunori Yusa, Shunji Kataoka, Hiroshi Kawai, Shinobu Yoshimura. Three-dimensional fracture mechanics simulation using partitioned iterative coupling algorithm. 10th World Congress on Computational Mechanics, São Paulo, Brazil, July 2012.
  122. 遊佐泰紀, 片岡俊二, 河合浩志, 吉村忍. 分離反復連成解法による三次元破壊力学解析. 第 17 回計算工学講演会, 京都, 2012 年 5 月.
  123. 遊佐泰紀, 片岡俊二, 河合浩志, 吉村忍. 分離型連成解法による三次元き裂進展解析. 第 61 回理論応用力学講演会, 東京, 2012 年 3 月.
  124. 遊佐泰紀, 片岡俊二, 河合浩志, 吉村忍. 大規模破壊力学問題の構造・構造連成解析手法. 第 30 回日本シミュレーション学会大会, 東京, 2011 年 10 月.
  125. 遊佐泰紀, 南さつき, 河合浩志, 吉村忍. 領域分割法における部分領域ソルバーの ICT 分解に基づくマルチコア向け実装. 日本機械学会第 24 回計算力学講演会, 岡山, 2011 年 10 月.
  126. Yasunori Yusa, Shunji Kataoka, Hiroshi Kawai, Shinobu Yoshimura. Structure-structure interaction modeling for large scale elasto-plastic analysis. 11th U.S. National Congress on Computational Mechanics, Minneapolis, USA, July 2011.
  127. 遊佐泰紀, 河合浩志, 吉村忍. DDM における反復法ベース領域ソルバーのマルチコア向け高速化. 第 16 回計算工学講演会, 柏, 2011 年 5 月.

受賞歴 Awards

18 April 2019
日本機械学会奨励賞(研究)
JSME Young Engineers Award, The Japan Society of Mechanical Engineers (JSME)
「孔やき裂など局所フィーチャを有する大規模構造物の効率的有限要素法シミュレーションの研究」
Study on efficient finite element simulation of large-scale structures with local features such as holes and cracks
27 May 2016
日本計算工学会博士論文賞
The PhD Thesis Award, The Japan Society for Computational Engineering and Science (JSCES)
「分離型連成解法による大規模非線形破壊力学シミュレーションの効率化」
Efficient large-scale nonlinear fracture mechanics simulation using partitioned coupling method
4 July 2014
日本シミュレーション学会ロゴデザイン応募作品採用に対する表彰
Award for Logo Design Competition Winner, Japan Society for Simulation Technology (JSST)

社会活動の一部 Selected Social Activities

November 2020–July 2022
Secretary, The Asian Pacific Association for Computational Mechanics (APACM)
April 2018–March 2021
日本計算力学連合事務局補佐
Secretary, Japan Association for Computational Mechanics (JACM)
November 2020–October 2021
日本計算工学会計算工学講演会実行委員
Conference Steering Committee Member, The Japan Society for Computational Engineering and Science (JSCES)
August 2010–June 2022
日本溶接協会原子力研究委員会 SPN-II(原子力構造機器の経年化とその関連技術に関する調査研究)小委員会中立委員
Member, SPN-II Subcommittee, Atomic Energy Research Committee, The Japan Welding Engineering Society (JWES)
April 2019–March 2022
日本溶接協会原子力研究委員会 FDF-II(繰返し荷重下での低サイクル疲労および延性破壊に対する評価法の整備に関する調査研究(その 2))小委員会中立委員
Member, FDF-II Subcommittee, Atomic Energy Research Committee, The Japan Welding Engineering Society (JWES)
October 2019–January 2021
精密工学会大規模環境の 3 次元計測と認識・モデル化技術専門委員会委員
Member, Technical Committee on 3D Scanning, Recognition, and Modeling of Large Scale Environments, The Japan Society for Precision Engineering (JSPE)