fatigue crack propagation velocity
fatigue crack propagation velocity
疲劳裂纹扩展速度
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The fatigue properties were researched and found that the crack propagation velocity and the decline of rigidity were related to the maximum cycle stress.
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。
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