The variation of SIF with the aspect ratio of a rectangular crack and the influence of the distance between two cracks on SIF were investigated by the presented numerical method.

• 采用该数值方法考察了应力强度因子随矩形裂纹长宽比的变化情况，以及共面和平行矩形裂纹间距对应力强度因子值的影响。