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本文用有限单元法和边界配置法相结合的方法,计算了重力坝坝踵处的应力强度因子;还探讨了边界配置法求应力强度因子时的收敛性问题。计算实践表明:选择适当的计算边界,用改变计算区域几何比例的方法可以求得稳定的应力强度因子。
In this paper, the finite element method and boundary configuration method are used to calculate the stress intensity factor at the dam of the gravity dam. The convergence of the boundary configuration method to find the stress intensity factor is also discussed. The computational practice shows that by selecting the appropriate calculation boundary, a stable stress intensity factor can be obtained by changing the geometric ratio of the calculation area.