...信息 关键词 ： 强度退化；非线性疲劳损伤累积；二元疲劳失效判据；寿命预测 [gap=1433]Keywords : strength degradation;nonlinear fatigue damage cumulative;double parameter fatigue criterion;life pre..
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剩余强度退化 residual strength degradation
强度与刚度退化 strength and stiffness degradation ; Degradations of strength and stiffness
不同退化强度草原群落 different degraded degree Steppe
对其进行随机化处理，得到控制强度退化过程的随机微分方程。
A stochastic differential equation, which controls strength degradation, is obtained from the model randomized by Markov process.
在研究疲劳过程中材料强度退化规律的基础上，建立了一个强度退化模型。
Based on the study of strength degradation of material in the fatigue process, a strength degradation model is proposed.
强度退化时，可靠度随时间降低较为明显，失效率具有“浴盆”曲线的特征。
When strength degenerates, reliability decreases with time more obviously, and the failure rate has the feature of a bathtub curve.
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