摘要
给出一个适用于平面断裂力学分析的新边界积分方程,在此方程的基础上建立了边界元数值计算方法.对Griffith裂纹问题进行了编程计算,用裂尖位错密度与应力强度因子的关系计算出了该问题的应力强度因子.
A new boundary integral equation is introduced to analyze plane elastic problems with cracks, and the boundary element numerical method based on this equation is established. The program is written using FORTRAN for Griffith crack problem, and STF is obtained by the relationship between the stress intensity factor and the dislocation density on the tip.
出处
《中原工学院学报》
CAS
2004年第5期21-23,共3页
Journal of Zhongyuan University of Technology
关键词
裂纹
断裂力学
应力强度因子
积分方程
边界元
cracks
fracture mechanics
stress intensity factors
integral formulation
boundary elements.
