alternating stress

基本解释

Oscilatory compaction works with a succession of rapidly alternating shear stresses to make a rearrangement of material particles in a denser way.
振荡压实是利用在材料厂中产生的快速交变剪应力使材料的颗粒重新排列而变得更加密实。
The dies are subject to alternating stresses due to loading and unloading during the deformation process and this causes crack initiation and eventual failure.
在变形加工过程中，由于加载、减载、模具承受交变应力作用，这就将引起开裂并发生重大破坏。
The dies are subjected to alternating stresses due to loading and unloading during the deformation process, and this causes crack initiation and eventual failure.
模具正是由于承受变形过程中加载和卸载的交变应力而产生裂纹直至最终失效。