摘要
采用虚拟接触载荷法真实模拟半圆柱体与带有氧化层的平板之间的接触现象 ,研究了接触表面、表层及基体内部的弹塑性应力分布特征 .研究发现 ,材料的变形刚度、屈服强度及表面摩擦力等因素对应力分布有显著影响 ,塑性屈服一般发生在表层下部 z/ a约为 0 .8处 。
The virtual contact loading method is applied to simulate the contact phenomenon between half cylinder and plate with oxidized sheet. The elasto plastic stress distribution laws among the contact surface, subsurface and inner of plate are studied in detail. It is found that the deformation stiffness, yield stress and frictional stress of the materials have great effect on the stress distributions, plastic yield generally occurs at z/a ≈0.8 below the surface and there is an abrupt stress change on the interface between oxidized sheet and basic plate.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2000年第2期135-138,共4页
Tribology
基金
四川省应用基础基金项目资助! ( 1970 70 5 )
关键词
氧化层
接触应力
弹塑性变形
数值分析
oxidized sheet
contact stress
elasto plastic deformation
numerical calculation
