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研究了三维边界元计算裂纹应力强度因子的数值方法，计算结果表明，用边界元方法计算应力强度因子具有较高精度。应用有限元法及边界元法对涡轮盘外凸边销钉孔进行了损伤容限分析，分析结果与实际情况吻合较好。
The numerical method for calculating the stress intensity factor of crack by three-dimensional boundary element is studied. The calculation results show that the calculation of stress intensity factor by the boundary element method has higher accuracy. The finite element method and the boundary element method were used to analyze the damage tolerance of pin hole on the outer flange of turbine disk. The analysis results are in good agreement with the actual situation.