An elastic–plastic asperity interaction model for sliding friction

Daniel M Mulvihill, Mehmet E Kartal, David Nowell, David A Hills

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

A finite-element model of the interaction of an elastic–plastic asperity junction based on cylindrical or spherical asperities is used to predict sliding friction coefficients. The modelling differs from previous work by permitting greater asperity overlaps, enforcing an interface adhesional shear strength, and allowing material failure. The results of the modelling were also used to predict friction coefficients for a stochastic rough surface. The asperities were based on the titanium alloy Ti-6Al-4V, and the magnitudes of the predicted friction coefficients were generally representative of experimental measurements of sliding friction. The results suggest that friction arises from both plasticity and tangential interface adhesion.
Original languageEnglish
Pages (from-to)1679-1694
Number of pages16
JournalTribology International
Volume44
Issue number12
Early online date1 Jul 2011
DOIs
Publication statusPublished - Nov 2011

Fingerprint

sliding friction
coefficient of friction
Friction
shear strength
titanium alloys
interactions
plastic properties
adhesion
friction
Titanium alloys
Shear strength
Plasticity
Adhesion

Cite this

An elastic–plastic asperity interaction model for sliding friction. / Mulvihill, Daniel M; Kartal, Mehmet E; Nowell, David; Hills, David A.

In: Tribology International, Vol. 44, No. 12, 11.2011, p. 1679-1694.

Research output: Contribution to journalArticle

Mulvihill, Daniel M ; Kartal, Mehmet E ; Nowell, David ; Hills, David A. / An elastic–plastic asperity interaction model for sliding friction. In: Tribology International. 2011 ; Vol. 44, No. 12. pp. 1679-1694.
@article{5077f5ada75e41f9abc29967ad58ffe4,
title = "An elastic–plastic asperity interaction model for sliding friction",
abstract = "A finite-element model of the interaction of an elastic–plastic asperity junction based on cylindrical or spherical asperities is used to predict sliding friction coefficients. The modelling differs from previous work by permitting greater asperity overlaps, enforcing an interface adhesional shear strength, and allowing material failure. The results of the modelling were also used to predict friction coefficients for a stochastic rough surface. The asperities were based on the titanium alloy Ti-6Al-4V, and the magnitudes of the predicted friction coefficients were generally representative of experimental measurements of sliding friction. The results suggest that friction arises from both plasticity and tangential interface adhesion.",
author = "Mulvihill, {Daniel M} and Kartal, {Mehmet E} and David Nowell and Hills, {David A}",
year = "2011",
month = "11",
doi = "10.1016/j.triboint.2011.06.018",
language = "English",
volume = "44",
pages = "1679--1694",
journal = "Tribology International",
issn = "0301-679X",
publisher = "Elsevier Inc.",
number = "12",

}

TY - JOUR

T1 - An elastic–plastic asperity interaction model for sliding friction

AU - Mulvihill, Daniel M

AU - Kartal, Mehmet E

AU - Nowell, David

AU - Hills, David A

PY - 2011/11

Y1 - 2011/11

N2 - A finite-element model of the interaction of an elastic–plastic asperity junction based on cylindrical or spherical asperities is used to predict sliding friction coefficients. The modelling differs from previous work by permitting greater asperity overlaps, enforcing an interface adhesional shear strength, and allowing material failure. The results of the modelling were also used to predict friction coefficients for a stochastic rough surface. The asperities were based on the titanium alloy Ti-6Al-4V, and the magnitudes of the predicted friction coefficients were generally representative of experimental measurements of sliding friction. The results suggest that friction arises from both plasticity and tangential interface adhesion.

AB - A finite-element model of the interaction of an elastic–plastic asperity junction based on cylindrical or spherical asperities is used to predict sliding friction coefficients. The modelling differs from previous work by permitting greater asperity overlaps, enforcing an interface adhesional shear strength, and allowing material failure. The results of the modelling were also used to predict friction coefficients for a stochastic rough surface. The asperities were based on the titanium alloy Ti-6Al-4V, and the magnitudes of the predicted friction coefficients were generally representative of experimental measurements of sliding friction. The results suggest that friction arises from both plasticity and tangential interface adhesion.

U2 - 10.1016/j.triboint.2011.06.018

DO - 10.1016/j.triboint.2011.06.018

M3 - Article

VL - 44

SP - 1679

EP - 1694

JO - Tribology International

JF - Tribology International

SN - 0301-679X

IS - 12

ER -