摘要
本文首先对统计分布函数进行简化处理,并给出了在多轴应力状态下的数值计算结果。在此基础上建立了“应力独立作用”假设的成立条件,讨论了它的使用范围及相应的误差,然后导出了使用更为广泛的几种修正形式,兼而讨论了按“方向平均应力”假设的正确性问题。
The simple forms of the distribution functions for fracture statistics un-der multiaxial states of stress are derived. The applicable condition aboutthe assumption of acting independence of principal stresses and the proce-dure by averaging the tensile stress in all directions are discussed. Somemodified formulations of these assumptions are presented.
关键词
统计断裂理论
最弱链环理论
应力
Statistical theory of fracture
Weakest link theory
principal stress acting independently
Averaging the tensile stress in all directions
