摘要
提出一种新的估算谱载荷下疲劳寿命的方法，即累积破坏率法，该方法根据等幅试验结果，推导出母体的特性，从而利用累积破坏率法估算谱载荷下的疲劳寿命．该方法简便实用，其预测能力明显优于其它方法．
This article presents a new method to es-timate fatigue life under spectrum load, accumula-tive destruction ratio method. According to the con-stant amplitude experimental results, this methodcan obtain the characteristics of paxent materialand estimate the fatigue life under spectrum loadwith accumulative destruction ratio method. Thismethod is easy to use and the result of estimationin some cases is better than that of other methods.
出处
《力学与实践》
CSCD
北大核心
2000年第3期22-24,共3页
Mechanics in Engineering
关键词
谱载荷
疲劳寿命
累积破坏率法
destruction ratio, probability density function, logarithm fatigue 1ife, average rank
