疲劳失效的连续损伤力学估算方法

A Continuum Damage Approach for Ftigue Life Prediction

在连续损伤概念的基础上给出了疲劳失效寿命估算的一种工程实用方法，该方法可以计算多级疲劳载荷谱作用下的疲劳寿命，也可以用于估算不同温度和应变速率作用下的疲劳寿命．计算结果与实验数据的比较表明，该方法是切实可行的．

This paper gives a general view of the approach based on the works the author did recently.It permits the calculation of the fatigue life under multi-step loading conditions as well as the life over a wide range of tem-peratures and strain rates.The approach seems practicable by comparison the analysis results with the experimental data of stainless steels.