【摘要】 研究弹性半平面上的裂纹问题,得到一个适宜于求解各向同性半平面断裂力学问题的新边界积分方程,在裂纹面上以位错密度为未知量,以此求解应力强度因子.新的边界积分方程只具有1/r的奇异性,且适用于求解半平面上任意形状的裂纹问题.更多还原

【Abstract】 In this paper a new boundary integral equation is derived for dealing with crack problems of the half plane bodies which are assumed to be linear elastic and isotropic. On the upper and lower crack surfaces, the dislocation density is regarded as an unknown quantity and used to obtain the stress intensity factors. It should be pointed out that the new boundary integral equation is also suitable for half plane bodies containing cracks which can be of arbitrary shapes.更多还原