摘要
本文将焦散线法推广应用到三维断裂问题。详细地分析了平面应变情况的断裂问题,实验得到的焦散线图象与理论分析的结果一致。用焦散线法测定的张开型应力强度因子与计算结果符合良好。
This paper deals with the application of the caustic method in the study of the problem of three-dimensional body crack. It is found that the caustic graph resulted from experiments accords with the theoretical form: the stress intensity factor measured with the caustic method is consistent with the calculation.
关键词
焦散线法
三维断裂
应力强度因子
caustics
three-dimensional body
fracture
stress intensity factor
