Flash temperature on the asperity scale and scuffing

John I. McCool, J. John

Research output: Contribution to journalConference article

Abstract

A simulation model is described for determining the distribution of asperity flash temperatures when rough surfaces undergo relative sliding. The asperities are assumed to deform elastically and to have coulomb friction at their tips. The spherical asperity model of Greenwood-Williamson is joined with the flash temperature approximation formulas developed by D. Kuhlmann-Wilsdorf. Two example applications illustrate the effect of sliding speed and material role reversal on mean flash temperature. The model is applied to scuffing tests on ground and polished roller specimens reported in the literature. The predicted flash temperature is found to vary inversely with the experimentally observed scuffing loads within each finish type.

Original languageEnglish (US)
JournalAmerican Society of Mechanical Engineers (Paper)
StatePublished - Dec 1 1988
EventPreprint - American Society of Mechanical Engineers - Baltimore, MD, USA
Duration: Oct 16 1988Oct 19 1988

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Temperature
Friction

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

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Flash temperature on the asperity scale and scuffing. / McCool, John I.; John, J.

In: American Society of Mechanical Engineers (Paper), 01.12.1988.

Research output: Contribution to journalConference article

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AB - A simulation model is described for determining the distribution of asperity flash temperatures when rough surfaces undergo relative sliding. The asperities are assumed to deform elastically and to have coulomb friction at their tips. The spherical asperity model of Greenwood-Williamson is joined with the flash temperature approximation formulas developed by D. Kuhlmann-Wilsdorf. Two example applications illustrate the effect of sliding speed and material role reversal on mean flash temperature. The model is applied to scuffing tests on ground and polished roller specimens reported in the literature. The predicted flash temperature is found to vary inversely with the experimentally observed scuffing loads within each finish type.

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