In this article a solution is found of the stress intensity factors in five cases. The solution is based on Airy stress function and the method of weighted residuals.
求解了五种情况的应力强度因子，采用的方法是艾雷应力函数和加权残数法。
2
Firstly, Airy stress function and the distributions of the membrane forces are determined by the combination of double cosine series.