疲劳强度低于弹性极限或屈服强度等静应力强度。
Fatigue strength is less than static stress strength such as elasticity limit, yield strength.
因此，要求钢具有高的弹性极限，高的疲劳强度以及高的冲击韧性和塑性。
Thus, requirements of steel with high elastic limit, high fatigue strength and high impact toughness and plasticity.
对两种不同对接焊缝布置下的船体结构进行疲劳强度和极限承载能力分析。
The fatigue and ultimate strength analysis of hull structure with two different butt-welding lines distribution was researched in this paper.
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