Analysis of fretting crack propagation behavior with X-FEM method

摘要：

Fretting fatigue cracks always initial at the trailing of contact region, because the stresses in the vicinity of the contact zone exhibit steep gradients. A fracture mechanics approach is usually used to estimate fretting fatigue propagation life. In this paper, extended finite element method combined with fracture mechanics is used to study fretting crack propagation behaviors. The computation results reveal that fretting crack nucleation is mainly decided by fretting, and the cycle bulk stress is the main reason for crack propagation. Also the XFEM exhibits merits in fretting fatigue problem.

关键词： Fretting Fatigue X-FEM Crack Propagation

作者: Wen LI Ridong LIAO Litao LIU Zhengxing ZUO

作者单位: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China

会议类型: 国际会议

会议名称: 2011 International Conference on Mechatronics and Applied Mechanics(2011年机电一体化与应用力学国际会议 ICMAM 2011)

会议地点: 香港

会议语种:英文

页码: 1162-1166

在线出版日期: 2011-12-27（万方平台首次上网日期，不代表论文的发表时间）