The probability distribution of fatigue damage and the statistical moment of fatigue life

被引：0
|
作者：
熊峻江
高镇同
机构：
[1] China
[2] Beijing 100083
[3] Research Center of Solid Mechanics
[4] Beijing University of Aeronautics and Astronautics
来源：
Science China Technological Sciences | 1997年 / 03期
基金：
中国国家自然科学基金;
关键词：
fatigue damage; fatigue life; stochastic differential equation; Markov process; probability dis-tri-bution; statistical moment;
D O I：
暂无
中图分类号：
TB12 [工程力学];
学科分类号：
0801 ; 080104 ;
摘要：
The randomization of deterministic fatigue damage equation leads to the stochastic differential equation and the Fokker-Planck equation affected by random fluctuation. By means of the solution of equation, the probability distribution of fatigue damage with the change of time is obtained. Then the statistical moment of fatigue life in consideration of the stationary random fluctuation is derived. Finally, the damage probability distributions during the fatigue crack initiation and fatigue crack growth are given
引用
收藏
页码：279 / 284
页数：6
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