The way of cutting hard brittle material in a plastic state is classified. 对塑性状态下切削硬脆材料的方法进行了归纳和分类。
Contrarily, the pavement begins to effect plastic deformation damage.A fix-quantify calculation method of road interlayer non-linearity contact is also proposed. 当层间有效接触面积小于临界值时,微观无数大小不同的接触点将处于塑性状态,宏观上路面开始发生塑性损伤变形。