摘要
通过对疲劳损伤过程中能量参数的分析，得出了一个用循环滞回能描述疲劳损伤非线性过程的损伤函数，并分析了其损伤演化规律．应用本文得出的损伤函数预测低循环疲劳寿命与试验结果符合较好①．
Based on the analysis of the fatigue damage energy and the fatigue damage evolution,the fatigue damage function of cyclic hysteresis energy describing non--linear fahgue darn age processes is obtained in this paper.The low cyclic fahguc ide predicted with this func tion conforms satisfactorily with the experimental results.
关键词
疲劳
损伤函数
非线性损伤
fatigue damage function
non--linear fatigue damage
cyclic hysteresis energy
