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本文用复势理论导出双材料Ｖ形切口的特征方程及切口顶端附近的应力和位移场，首次利用数值分析方法计算出了混凝土坝坝踵区的应力强度因子．典型算例表明，本文计算结果具有较高的计算精度．
In this paper, the complex potential theory is used to derive the eigenvalue equation of the V-notch and the stress and displacement fields near the top of the notch. The stress intensity factor of the heel of concrete dam is calculated for the first time by numerical analysis. A typical example shows that the calculation results in this paper have high computational accuracy.