潮汐应力引起地壳岩石的循环应变、累积疲劳损伤，形成疲劳断裂。
The tidal stress gives rise to cyclic strain, and then forms cumulative damages and fatigue fractures in crustal rocks.
获得了用电阻变化测量疲劳损伤的公式，应用计及疲劳极限和循环应力幅影响的非线性累积疲劳损伤模型，给出了金属材料疲劳损伤的剩余寿命预测公式。
By using the nonlinear cumulative fatigue damage model considering the influence of the fatigue limit and the cyclic stress amplitude, the remaining life formula of the.
依据疲劳损伤累积理论，确定了公轨两用钢桁桥轨道横梁与整体节点连接头验证性疲劳试验的试验荷载。
According to fatigue damage accumulation theory, test load of verified fatigue test on rail across beam and welded connections with integral joint of combined steel truss bridge was gotten.
比较各种疲劳损伤累积理论计算方法的优缺点。
The advantages and disadvantages of the fatigue damage cumulative rules are discussed.
本文阐述了已有的混凝土结构疲劳累积损伤理论和疲劳损伤识别原理。
In this dissertation, the theory which is known of concrete structure fatigue cumulative damage and damage detection is narrated.
因此，新定义的疲劳损伤阀值与线性累积损伤之间在分布形态上是一致的。
Therefore, the distribution configuration of the fatigue damage threshold is the same as the distribution configuration of lineal cumulative damage.
文中把疲劳损伤分为静拉伸损伤与循环损伤两部分，给出了损伤累积模型。
Fatigue damage is separated into two parts-static tension damage and cyclic damage. With the help of above analysis, a fatigue life estimation model is presented.
一般的线性损伤累积理论忽略了高频率低疲劳应力所引起的构件疲劳损伤，致使预测结果与实际寿命相差很大。
But the common linear fatigue damage cumulative rule neglects the fatigue damage which is brought by the high frequency and low stress.
根据疲劳累积损伤理论，提出了新形式的疲劳损伤演化方程，与试验结果对比，该方程能较好地反映新材料的损伤演化规律。
A new fatigue damage evolution equation was proposed according to the fatigue accumulative damage theory, the effectiveness of which was verified by experimental results.
金属构件常常因受到动载荷作用引起疲劳损伤，而疲劳损伤累积的结果往往导致裂纹的产生。
The fatigue damage of the metal material often happens under the action of the dynamic load. The accumulation of fatigue damage of the metal material leads to the result of surface fatigue cracks.
然后推导出该疲劳损伤累积模型在多级加载下的递推公式。
The recurrence formula of the fatigue damage model is derived under multilevel loading, and the loading case below the fatigue limit is also considered.
然后推导出该疲劳损伤累积模型在多级加载下的递推公式。
The recurrence formula of the fatigue damage model is derived under multilevel loading, and the loading case below the fatigue limit is also considered.
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