random crack

In this thesis, considering the random nature of the whole set of data, unified a-N incremental polynomial fitting method is proposed under the same test conditions to provide a scientific basis for the study of the influence of different stress ratio on the fatigue crack propagation.

本论文采用考虑整套数据的随机特性的a-N数据拟合方法，提出统一a-N递增多项式拟合法，为研究不同应力比R下的疲劳断裂可靠性提供科学的依据。

An Investigation on Random Fatigue Strength of K-Type Tubular Joints and Crack Propagation Behaviors

K型管状接头随机疲劳强度和裂纹扩展规律的研究

The fatigue crack growth under the random loads is described by a time discrete Markoff process.

齐次马尔可夫模型可以用于描述伪随机谱载荷下的裂纹扩展的随机过程。

A random crack opened up in the living room,

客厅里有个地方裂开了