Analysis of Crack Growth Retardation after Single Overload Based on FEM Simulation and CORPUS Model Prediction

摘要：

　　In this paper,the distribution of the residual stress and equivalent plastic strain along the crack surfaces of the current crack with the crack growth is presented by finite element calculation.The residual stress intensity factor Kres was calculated by using the weight function method(WFM),and the effective stress range △Seff during the crack growth in the retardation zone is shown based the simulative calculation.Then,the effective stress range △Seff with different Rol have been predicted by CORPUS model.The results indicate that the FEM simulative calculation and the CORPUS model prediction are agreement.They all show the crack growth retardation after an overload at different overload ratio Rol,and the effects of crack growth rate by the retardation.

作者: Lina Zhang Qianqian Gao Shaojun Ma Dihua Tong

作者单位: Beijing Institute of Aeronautical Materials,Beijing,China,Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Aviation Key Laboratory of Science and Technology on Aeronautical Materials Testing and Evaluation

会议类型: 国际会议

会议名称: The 1st International Symposium on Application of Materials Science and Energy Materials (SAMSE 2017)

会议地点: 上海

会议语种:英文

页码: 1-6

在线出版日期: 2017-12-28（万方平台首次上网日期，不代表论文的发表时间）