The static friction peak in reciprocating sliding

Bin Jaber, S., Xu, Y. , Kartal, M. E., Gadegaard, N. and Mulvihill, D. M. (2023) The static friction peak in reciprocating sliding. Tribology International, 180, 108240. (doi: 10.1016/j.triboint.2023.108240)

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This paper investigates why the static friction peak is mostly absent in reciprocating sliding and gross-slip fretting literature. Here, reciprocating sliding tests were conducted on ultra-smooth silicon surfaces. A prominent static friction peak was present in the initial cycles. However, a rapid wear-induced decay in the static friction peak occurred after the first cycle with the peak being mostly absent by about 30 cycles. Two possible explanations are proposed for the wear-induced decay: (1) that increasing surface roughness (with cycles) reduces the fully stuck contact area and (2) that wear reduces the bonding strength of the stuck interface by removing third body contaminant molecules. Predictions from a multi-asperity friction model are used to support these arguments.

Item Type:Articles
Additional Information:The authors would like to acknowledge the support of the Leverhulme Trust who supported the overall research under project grant “Fundamental Mechanical Behaviour of Nano and Micro Structured Interfaces” (RPG-2017-353). S.B-J acknowledges the support of the Saudi Arabian Cultural Bureau in London and Al-Imam Mohammad Ibn Saud Islamic University (IMISU), Riyadh for sponsoring and supporting his PhD studies. N.G. acknowledges ERC funding through FAKIR 648892 Consolidator Award and support from the Research Council of Norway through its Centres of Excellence funding scheme, Project No. 262613.
Glasgow Author(s) Enlighten ID:Xu, Dr Yang and Mulvihill, Dr Daniel and Bin Jaber, Saad and Gadegaard, Professor Nikolaj
Authors: Bin Jaber, S., Xu, Y., Kartal, M. E., Gadegaard, N., and Mulvihill, D. M.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Tribology International
ISSN (Online):1879-2464
Published Online:09 January 2023
Copyright Holders:Copyright © 2023 The Authors
First Published:First published in Tribology International 180: 108240
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
302858Fundamental Mechanical Behaviour of Nano and Micro Structured InterfacesDaniel MulvihillLeverhulme Trust (LEVERHUL)RPG-2017-353ENG - Systems Power & Energy
172025FAKIR: Focal Adhesion Kinetics In nanosurface RecognitionNikolaj GadegaardEuropean Research Council (ERC)648892ENG - Biomedical Engineering