周期性载荷后，各组骨折部位活动增加。
给出了一种利用有限元技术模拟周期性张力载荷作用下孔边角裂纹扩展过程的方法。
A method is proposed to simulate the fatigue crack growth by finite element technique for corner cracks under cyclic tension loading.
在齿形链传动中，链条承受周期性的交变载荷，其中链节啮入轮齿时产生的冲击载荷影响较大。
In odontoid chain drive, the chain bears a periodical alternating load, in which the impact load produced while the link meshes into the tooth of sprocket makes comparatively big effect.
成形载荷随着温度的升高而降低，且呈现出周期性锯齿状载荷-行程曲线。
As the temperature rises, forming load decreases, and the curves of load-stroke shows serrated periodicity rule.
本研究利用“剪切梁”模型，研究了在定常侧压力和周期性的反平面剪切载荷共同作用下，层间界面的破坏规律。
In this study, the interface failure under the joint action of constant compression and periodical anti-plane shear is investigated.
本研究利用“剪切梁”模型，研究了在定常侧压力和周期性的反平面剪切载荷共同作用下，层间界面的破坏规律。
In this study, the interface failure under the joint action of constant compression and periodical anti-plane shear were investigated.
研究了在轴向载荷和周期性横向载荷共同作用下非线性粘弹性嵌岩桩的混沌运动情况。
The chaotic motion of a nonlinear viscoelastic rigid basic pile subjected to an axial force and a periodic horizontal force was investigated.
由于连续油管在周期性的疲劳载荷作用下进行工作，很容易因疲劳损伤而造成连续油管失效，导致连续油管使用寿命大大缩短。
The coiled tubing in a cyclical fatigue loads to work, it is susceptible to fatigue damage caused by a continuous failure, result in shorten life of a coiled tubing.
由于连续油管在周期性的疲劳载荷作用下进行工作，很容易因疲劳损伤而造成连续油管失效，导致连续油管使用寿命大大缩短。
The coiled tubing in a cyclical fatigue loads to work, it is susceptible to fatigue damage caused by a continuous failure, result in shorten life of a coiled tubing.
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