Elastic-plastic contact behavior considering asperity interactions for surfaces with various height distributions

Yeau Ren Jeng, Shin Rung Peng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This study investigates the effects of asperity interactions on the mean surface separation and the real contact area for rough surfaces with non-Gaussian height distributions. The effects of the asperity interactions on the local deformation behavior of a given micro-contact are modeled using the Saint-Venant principle and Love's formula. The non-Gaussian rough surfaces are described by the Johnson translatory system. The results indicate that asperity interactions can significantly affect the mean separation of surfaces with non-Gaussian height distributions. The findings also reveal that the contact load and the real contact area of surfaces with non-Gaussian height distributions are significantly different from those of surfaces with Gaussian height distributions. This study uncovers that skewed surfaces tend to deform more elastically, which provides underlying physics for the long time conventional wisdom and recent experimental data [Tribol. Trans., 39, 354 (1996), 34; ASME J. Tribol., 126, 620 (2004), 25] that running-in surfaces have better wear resistance.

Original languageEnglish
Title of host publicationProceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006
Publication statusPublished - 2006 Nov 28
EventSTLE/ASME International Joint Tribology Conference, IJTC 2006 - San Antonio, TX, United States
Duration: 2006 Oct 232006 Oct 25

Publication series

NameProceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006
Volume2006

Conference

ConferenceSTLE/ASME International Joint Tribology Conference, IJTC 2006
CountryUnited States
CitySan Antonio, TX
Period06-10-2306-10-25

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Jeng, Y. R., & Peng, S. R. (2006). Elastic-plastic contact behavior considering asperity interactions for surfaces with various height distributions. In Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006 (Proceedings of STLE/ASME International Joint Tribology Conference, IJTC 2006; Vol. 2006).