Yield modes in a coated spherical contact

被引：7
|
作者：
Chen, Z. [1 ]
Goltsberg, R. [1 ]
Etsion, I. [1 ]
机构：
[1] Technion, Dept Mech Engn, IL-32000 Haifa, Israel
来源：
TRIBOLOGY INTERNATIONAL | 2018年 / 120卷
关键词：
Yield map; Hard coatings; Coated spherical contact; FINITE-ELEMENT-ANALYSIS; UNIVERSAL MODEL; HALF-SPACE; SUBSTRATE; INDENTATION; WEAR; ROUGHNESS; EVOLUTION; MAP; TIN;
D O I：
10.1016/j.triboint.2018.01.005
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A finite element analysis is used to investigate the yield inception in a coated sphere, with hard coating, compressed by a rigid flat. Various modes of yield inception on the axis of symmetry at single or simultaneous double or triple locations are observed depending on the dimensionless coating thickness and material properties. The different yield modes are presented in a yield map, which enables to identify the yield mode of any actual coated system based on its material and geometrical properties. Good agreement is found between the current yield map and a few published results. Some improvements of the current yield map compared to previously published ones are discussed.
引用
收藏
页码：309 / 316
页数：8
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