三维空间中共面周期裂纹阵的静态应力强度因子

The Static Stress Intensity-Factors of a CoplanarPeriodic Array of Cracks in 3-D Space

本文研究了三维空间中共面周期裂纹阵的静态摩力强度因子。首先提出了问题的格林函数,然后求得以裂纹张开位移为未知量的积分方程组。对于矩形的Ⅰ型裂纹,进行了数值计算。在几种情况下与其它解进行了比较,结果是令人满意的。

In this paper, the static stress intensity-factors of a coplanar periodic array of cracks in 3-D space have been studied in detail. Firstly, the Green function of this subject has been found; then, a system of integral equations with the crack-opening displacement as the unknowns have been found in succession. And numerical results are given for the rectangular I model crack. The close agreements of the numerical solution for several cases with other solutions indicate that our solution is satisfactory.