【摘要】 利用弹性力学放松连续性要求的变分原理，建立了求解三维界面裂缝问题杂交元计算模型，并通过采用杂交无法计算了三维界面裂缝应力强度因子，为三维界面裂缝的实验研究提供了必要的理论依据。更多还原

【Abstract】 The hybrid finite element model for solving the problem about 3-D interface crack is sets up based on variation priniciple for relaxing condition of continuity in mechanics of elasticity Furthermore,the stress intensity factor of 3-D interface crack is calculated using hybrid finite element method. The results are necessary theory basis for experiment and study of 3-D interface crack.更多还原