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考察了疲劳过程中刚度下降和疲劳裂纹产生情况。
The macroscopic fatigue behavior was characterized in terms of stiffness reduction and fatigue cracks.
本文提出了考虑残余应变刚度下降的复合材料疲劳累积损伤模型。
The research work in this paper is included following: 1, A fatigue model based on the 'Strain Equivalent Hypothesis' is presented.
通过对其疲劳性能的实验研究，发现裂纹扩展速率的大小及刚度的下降与加载的最大循环应力密切相关的规律。
The fatigue properties were researched and found that the crack propagation velocity and the decline of rigidity were related to the maximum cycle stress.
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