Influence of temperature-dependent yield strength on thermomechanical asperity contacts

被引：19
|
作者：
Yu, H [1 ]
Liu, S [1 ]
Wang, QJ [1 ]
Chung, YW [1 ]
机构：
[1] Northwestern Univ, Ctr Surface Engn & Tribol, Evanston, IL 60208 USA
来源：
TRIBOLOGY LETTERS | 2004年 / 17卷 / 02期
基金：
美国国家科学基金会;
关键词：
thermal effect; temperature-dependent; yield strength; rough surfaces in contact;
D O I：
10.1023/B:TRIL.0000032440.19767.17
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This paper reports the effects of thermal softening on asperity contacts. We modified the thermomechanical asperity model previously developed by Liu and Wang based on discrete convolution, fast Fourier transform and the conjugate gradient method and applied it to the current study. The yield strength was assumed to be a function of local asperity temperature. Asperity contact pressure and contact area with and without such temperature effects were analyzed and compared.
引用
收藏
页码：155 / 163
页数：9
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