中文摘要：

结合裂面边界条件和位移单值条件得到裂面上有伪集中力作用时应力函数的复势解。同时利用＂伪力法＂,在叠加原理的基础上,借助Chebyshev数值积分法求得＂伪力＂的大小,给出了压缩载荷作用下多裂纹相互干涉的解法,讨论了裂纹之间的干涉效应。算例计算了两个裂纹之间的干涉及共线裂纹的相互作用,并分析了裂纹间的距离、夹角等因素对应力强度因子的影响。

英文摘要：

Combined the boundary conditions on the crack faces and the single value condition of displacement.The complex potentials solution of stress function for a crack with concentrated pseudo-forces on the crack faces was arrived.With the aid of ＂pseudo-force＂ method,the superposition technique and Chebyshev integral method,the ＂pseudo-force＂ was obtained,the multiple crack interaction was solved and the interaction effects were discussed.The interactions between two cracks or of many cracks on the same line were calculated,and the effect of the distance and the angle on the stress intensity factor was analyzed.