摘要
根据线弹性断裂力学分析中常用的叠加方法,把一个有限域内的裂纹问题分解成无裂纹部分和裂纹部分的叠加来求解.其法只需较少的离散单元就可达到理想的精度,是求解裂纹问题的一种简单有效的方法.
Based on the propertis of the linear elastic fracture mechanics,a crack
probleml of the finite region can be solved by superposition of an uncracked
part of the finite region and a cracked part of infinite domain.Numerical
examples show that good results could be obtained with relatively few
etemenfs when using the treatment.Therefore,it is a kind of effetive
method for solving the problems of linear elastic fracture mechanics.
关键词
裂纹问题
线弹性
断裂力学
边界元
linear elaslic fractpre mechanics
boundary element method
method of displacement discontinuity.
