614 大規模三次元(疲労)き裂進展自動シミュレーションシステムの開発(G01-2 計算力学(2)破壊力学・材料解析,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

抄録

In this paper, the development of a fully automated computational mechanics analysis system for three-dimensional (fatigue) crack propagation problems is described. The finite element analyses for the cracked bodies are performed by using the second-order tetrahedral finite element. The stress intensity factors are computed by using the virtual crack closure-integral method that was extended to the case of tetrahedral finite element by the authors. Analyses models for the cracked structures are generated by using an automatic mesh generation scheme that was also proposed by the authors. The finite element analyses are performed by using the ADVENTURE system and its associated modules are utilized to handle data in large-scale crack analyses. The analysis system is briefly described and a demonstration problem is shown in this paper.