Fracture Mechanics Analysis of Edge Crack Based on FEM

摘要：

In this paper, the double-edge crack stress intensity factors were computed by finite element analysis software based on the computation model of thin plate double-edge asymmetrical cracks, and the influences of double-edge relative position and crack length on the stress intensity factors were discussed in detail. The results indicated that the crack stress intensity factor of double-edge increased with the increasing of the crack length at crack tips, and mode I stress intensity factor increased with the increasing of double-edge crack relative distances at double-edge crack tips. In the actual project, when double-edge crack length ratio is higher than 1.0, the mode I and mode II stress intensity factor of double-edge crack should both be considered, and when the ratio is smaller than 1.0, focus should be put on the mode I stress intensity factor.

关键词： Finite element method Crack Stress intensity factor Numerical simulation

作者: Bo He Shan-shan Li Hong-cai Zhang

作者单位: Shenyang Aerospace University, Shenyang, China Armor Technique Institute of PLA, Changchun, China

会议类型: 国际会议

会议名称: The Third International Conference on Modelling and Simulation(第三届国际建模、计算、仿真、优化及其应用学术会议 ICMS 2010)

会议地点: 无锡

会议语种:英文

页码: 264-267

在线出版日期: 2010-06-04（万方平台首次上网日期，不代表论文的发表时间）