研究疲劳应力应变滞后环对探讨疲劳积累损伤很重要。
It is important to study fatigue stress - strain hysteresis Loop on cumulative fatigue damage.
对一条实船的分析说明，腐蚀和疲劳损伤虽然短时间内的破坏并不显著，但积累到一定程度，对船体结构的影响相当大。
The tank case study shows that in short time period fatigue and corrosion damages could be neglected, but the damages could affect ship strength obviously when they accumulate to some degree.
由等幅疲劳残余应变，定义了损伤变量，得到了相应的损伤积累和演化规律。
The damage variable is defined as the residual strain of concrete under constant amplitude fatigue loading, and the law of cumulative damage and its evolution are obtained.
由等幅疲劳残余应变，定义了损伤变量，得到了相应的损伤积累和演化规律。
The damage variable is defined as the residual strain of concrete under constant amplitude fatigue loading, and the law of cumulative damage and its evolution are obtained.
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