The distribution of microcontact area, load, pressure, and flash temperature under the greenwood-williamson model

John I. McCool

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Microcontact models provide average values of the random interfacial load, area and pressure between rough contacting surfaces. They do not provide a measure of the variability about that average. Events of tribological importance, however, are likely to be dependent on extreme rather than average behavior conditions. In this paper Monte Carlo simulation is used to determine the 75th and 90th percentiles of three dimensionless random variables as a function of the dimensionless separation of two contacting rough surfaces. These values may be used to determine the corresponding percentiles under the Greenwood-Williamson microcontact model of the distributions of 1) real contact area fraction, 2) the radius of the microcontact area, 3) microcontact load, 4) the maximum microcontact pressure and 5) the asperity flash temperature under low speed sliding conditions. A numerical example illustrates the computations.

Original languageEnglish (US)
Pages (from-to)106-111
Number of pages6
JournalJournal of Tribology
Volume110
Issue number1
DOIs
StatePublished - Jan 1 1988

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flash
Random variables
random variables
Temperature
low speed
temperature
sliding
radii
simulation
Monte Carlo simulation

All Science Journal Classification (ASJC) codes

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

Cite this

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The distribution of microcontact area, load, pressure, and flash temperature under the greenwood-williamson model. / McCool, John I.

In: Journal of Tribology, Vol. 110, No. 1, 01.01.1988, p. 106-111.

Research output: Contribution to journalArticle

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