三维空间中周期裂纹阵受剪切作用时的断裂力学分析

Fracture Mechanical Analysis for a Periodic Array of Cracks in 3-D Space under Shear Loading

本文研究了岩石断裂力学中感兴趣的三维空间中周期裂纹阵受剪切作用的问题。求出了以裂纹张开位移为未知量的奇异积分方程。对矩形裂纹面进行了数值计算,得到了应力强度因子沿裂纹边界的分布规律。

The problem of periodic array of cracks in 3-D space under shear loading which is interested in roek fracture mechanics has been investigated. The singular integral equation for the unkown crack opening displacement is derived. Numerical calculation has been taken for rectangular crack and the distribution of stress intensity factors along the crack edge has been obtained.