弹性半平面中斜裂纹问题的应力强度因子

Stress Intensity Factor on Oblique Crack in Elastic Half-plane

从研究半平面斜裂纹问题的超奇异积分方程出发,通过适当的正则化代换和方程配置,建立求解问题的线性方程组,从而得出计算半平面中任意斜裂纹问题的数值方法,并编制Fortran计算程序,对不同情况下裂纹的应力强度因子进行计算.数值结果表明,半平面的边界对裂纹应力强度因子的大小有剧烈影响.

Based on hyper-singular integral equations of the inclined crack in the half-plane,through appropriate variable replacements and equation collocations,establish the linear equations.This numerical calculation method is used for solving the arbitrarily inclined crack problem in a half-plane.According to the Fortran program results,the boundary of a half-plane have a great influence on the crack stress intensity factor.