Article

Surface Roughness and Material Strength of Tribo-Pairs in Ring Compression Tests

Tribology International

Valentino Anok Melo ; Pedro A.R. Rosa; P.A.F. Martins — 2011

Key information

Authors:

Valentino Anok Melo (Valentino Anok Melo Cristino); Pedro A.R. Rosa (Pedro Alexandre Rodrigues Carvalho Rosa); P.A.F. Martins (Paulo António Firme Martins)

Published in

February 2011

Abstract

The quantification of friction by means of simple models such as AmontonCoulombs and the law of constant friction is questionable because the influence of surface roughness and material strength, among other factors, is not considered. This paper provides a comprehensive analysis on the influence of surface roughness and material strength in friction and proposes a new operator based on a sigmoid function to incorporate the combined influence of both phenomena in a modified version of the AmontonCoulombs law. The presentation is supported by thoroughly researched quantitative data obtained from experimentation and finite element modelling of the ring compression test.

Publication details

Authors in the community:

Title of the publication container

Tribology International

First page or article number

134

Last page

143

Volume

44

Issue

2

Fields of Science and Technology (FOS)

mechanical-engineering - Mechanical engineering

Publication language (ISO code)

eng - English

Rights type:

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