Surface initiated fatigue breakage 表面初始疲劳破裂
Subsurface initiated fatigue breakage 金属表面斜层初始疲劳破裂
Surface e initiated fatigue breakage 表面初始疲劳破裂
Su urface initiated fatigue breakage 金属表面斜层初始疲劳破裂
Subsurface e initiated fatigue breakage 金属表面斜层初始疲劳破裂
Fatigue e breakage 疲劳破裂
The fatigue breakage is one important of damage style in mechanic fractures. Forecasting structure fatigue life is very important.
疲劳破坏是机械结构的主要破坏形式之一，准确预测机械结构工作疲劳寿命至关重要。
Fork failure of a forklift truck mainly takes a form of plastic deformation exceeding allowable limit, fragile breakage and early stage fatigue breakage.
叉车货叉失效方式主要表现为塑性变形超差，脆性断裂和早期疲劳断裂。
It is found that inherent frequencies are much larger than pumping frequencies and resonance cannot emerge before and after optimization. Fatigue breakage is caused by overload mainly.
结果发现优化前后支架的固有频率都远大于激励频率，不会产生共振，疲劳破坏主要由载荷超重引起的。
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