Improvement of S-version FEM code for 3-d. fatigue crack growth simulation.

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05693
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Materials/Mechanics of materials
• Research Institution: Tokyo University of Science
• Principal Investigator: Kikuchi Masanori 東京理科大学, 理工学部機械工学科, 教授 (90107540)
• Co-Investigator(Kenkyū-buntansha): 高橋 昭如 東京理科大学, 理工学部機械工学科, 准教授 (00366444) ; 和田 義孝 近畿大学, 理工学部, 教授 (40350847)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 疲労亀裂進展解析 / 重合メッシュ法 / 有限要素法 / き裂閉口比 / 疲労寿命

Outline of Final Research Achievements

S-version FEM code was updated. The crack closure effect is estimated by conventional method, and realistic fatigue crack growth simulation became possible. 3-dimensional crack growth simulation is applied to verify the alignment rule for nuclear power plant maintenance code. A new method estimating crack closure effect is proposed using AI technique. Basic research for the study by deep-learning is conducted. To improve the S-version FEM code, S-FEM seminars were organized. Research results have been published in the Journal and presented in domestic and international conferences

Free Research Field

材料力学、破壊力学、計算力学