Birnbaum Saunders fatigue life distribution BirnbaumSaunders疲劳寿命分布
probability distribution of fatigue life 疲劳裂纹起始寿命概率分布
Based on the experiments, fatigue life distribution of RPC is studied using fatigue life statistics theory, the fatigue life equation is established.
在实验基础上，用疲劳统计学理论研究了RPC弯曲疲劳寿命的概率分布规律，得出RPC的疲劳寿命方程。
It is shown that a regular pattern distribution of scattered alloying zones which surrounded by phase transformation zone can retard the fatigue crack growth rate and improve the fatigue life.
研究表明，大量规则分布、互不重叠的合金化区及其周围的相变硬化区从总体上降低了疲劳裂纹扩展速率，提高了材料的疲劳寿命。
The test results show that the predicting fatigue life under variable amplitude loading follow the log normal distribution and agree well with simulation test results.
结果表明，变幅载荷下疲劳寿命的预测结果和模拟结果均服从对数正态分布，且两者符合很好。
应用推荐