The evaluation of crack initiation life is directly affected by the reliability of nondestructive testing.

检测方法的可靠性直接影响结构疲劳裂纹形成寿命估计值.

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The fracture procedure is a whole process of crack initiation, crack propagation and final fracture.

材料断裂过程为裂纹萌生 、 扩展和最后断裂过程,组织及实验条件对材料断裂有较大影响.

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Fatigue lifetime of valve springs contains two parts: lifetime crack initiation and another for crack propagation.

疲劳寿命一般包括疲劳裂纹萌生寿命和裂纹扩展寿命两部分.

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Crack initiation and propagation process in A 356 aluminium alloy under impact load have been investigated.

研究了A356铝合金在冲击载荷作用下的裂纹萌生及其扩展过程.

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The fractography of the fatigue crack initiation displayed cleavage facet and more second cracks after pre - training.

裂纹形成的断裂为穿晶解理机制,预应变可导致更多的二次裂纹.

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Fretting fatigue crack initiation tended to occur in fretting scar, especially from grinding pits.

疲劳裂纹易于在微动区, 特别是在蚀坑处萌生和扩展.

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