On the role of scales in contact mechanics and friction between elastomers and randomly rough self-affine surfaces

Valentin Leonidovich Popov, Andrey Dimaki, Sergey Psakhie, Mikhail Popov

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The paper is devoted to a qualitative analysis of friction of elastomers from the point of view of scales contributing to the force of friction. We argue that - contrary to widespread opinion - friction between a randomly rough self-affine fractal surface and an elastomer is not a multiscale phenomenon, but is governed mostly by the interplay of only two scales - as a rule the largest and the smallest scales of roughness of the contacting bodies. The hypothesis of two-scale character of elastomer friction is illustrated by computer simulations in the framework of the paradigm of Greenwood, Tabor and Grosch using a simplified one-dimensional model.

Original languageEnglish
Article number11139
JournalScientific Reports
Volume5
DOIs
Publication statusPublished - 9 Jun 2015

ASJC Scopus subject areas

  • General

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