Crack Growth-based Fatigue Life Prediction Using Spline Fictitious Boundary Element Method

摘要：

　　Fatigue life prediction is of great importance to the design and maintenance of structural components.A boundary element method (BEM)-based approach is proposed in this paper for fatigue life prediction using crack growth analysis.The proposed methodology is based on the well-known Paris equation for fatigue crack growth rate,which is related to the amplitude of the stress intensity factor (SIF) as a crack grows.The SIF is determined by the fracture spline fictitious boundary element method (SFBEM) based on the Erdogan fundamental solutions for plane cracked problems.The fusion of SFBEM and the Erdogan fundamental solutions is computationally efficient and provides a powerful tool for crack growth-based fatigue life prediction.A numerical example based on the mode-I crack problem is presented to validate the present method.The results show that the predicted fatigue life obtained by the present approach is accurate in comparison with the analytic solution.

关键词： crack growth life prediction fracture mechanics spline fictitious boundary element method

作者: Cheng Su Chun Zheng

作者单位: School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640 School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-9

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）