repeated deformation

It is found that, on repeated impact force, the various of failure mode of the components include the surface crackle, surface plastic deformation, corrosive pitting and coat collapse, etc.

发现在反复多次冲击碰撞力作用下，覆层零件表现出表面裂纹、表面塑性变形、表面点蚀和覆层崩落等多种失效形式。

The beach deformation and erosion during 9914 typhoon against Xiamen Island are studied in the paper, according to both the repeated topographic survey of the beach profiles of Xiamen Island and the determined data of tidal level and wind elements for 9914 typhoon.

根据9914号台风发生前后对厦门岛滨岸海滩剖面地形的重复测量结果及有关台风要素和潮位的实测资料，探讨了台风袭击厦门岛期间海滩的变形特征和侵蚀状态。

Rather than adding other metals, they developed a complex mechanical process involving repeated heating and very severe mechanical deformation, known as tempforming.

他们没有添加其他金属，而是开发了一个复杂的机械过程，包括反复加热和非常严重的机械变形，也就是所谓的形变回火法。

The closed type cover die is working in repeated impact, cold and hot alternation and high pressure friction situation. The die is easy to be crashed, including wearing, plastic deformation, hot cracking etc.

闭式套模在反复冲击、冷热交变、高压摩擦的情况下工作，比较容易产生磨损、塑性变形、热裂纹等损坏失效。

Fatigue Crack occurs under repeated action of load, features map cracking with longitudinal crack ( generally deformation is not distinguished), and occurs mainly late in the service life of pavements.

荷载作用产生的裂纹主要是指荷载反复作用引起的疲劳裂纹。