Influence of temperature-dependent yield strength on thermomechanical asperity contacts

H. Yu*, S. Liu, Q. J. Wang, Y. W. Chung

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)155-164
Number of pages10
JournalTribology Letters
Issue number2
StatePublished - Aug 2004


  • Rough surfaces in contact
  • Temperature-dependent
  • Thermal effect
  • Yield strength

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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