杂交元法在复合材料三维界面裂缝应力强度因子计算中的应用

Hybrid finite element method appied in computation of crack stress intensity of composite material on three dimension interfaces

利用杂交元法建立了求解复合材料三维界面裂缝问题的杂交元计算模型，并将之应用于复合材料型试件应力强度因子的计算过程，从而为此类试件的断裂安全分析提供了充分的理论依据。

The mathematical model of hybrid finite element is constructed to solve the crack problems of composite material on three dimension interfaces. Then, the model is applied to calculate the stress intensity factors of various types of composite material beams. Consequently, the numerical results provide sufficient theoretical bases for these kinds of structures.