Ghanbarzadeh, A orcid.org/0000-0001-5058-4540, Faraji, M and Neville, A (2020) Deterministic normal contact of rough surfaces with adhesion using a surface integral method. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 476 (2242). p. 20200281. ISSN 1364-5021
Abstract
The fundamental problem of adhesion in the presence of surface roughness and its effect on the prediction of friction has been a hot topic for decades in numerous areas of science and engineering, attracting even more attention in recent years in areas such as geotechnics and tectonics, nanotechnology, high-value manufacturing and biomechanics. In this paper a new model for deterministic calculation of the contact mechanics for rough surfaces in the presence of adhesion is presented. The contact solver is an in-house boundary element method that incorporates fast Fourier transform for numerical efficiency. The adhesive contact model considers full Lennard-Jones potentials and surface integration at the asperity level and is validated against models in the literature. Finally, the effect of surface roughness on the adhesion between surfaces was studied, and it was shown that the root mean square gradient of surface roughness can change the adhesive pressures irrespective of the root mean square surface roughness. We have tested two adhesion parameters based on Johnson's modified criteria and Ciavarella's model. We showed that Civarella's model introduces the most reasonable criteria suggesting that the RMS roughness and large wavelength of surfaces roughness are the important parameters of adhesion between rough surfaces.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 The Author(s). Published by the Royal Society. All rights reserved. This is an author produced version of an article published in Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | roughness; contact mechanics; Lennard-Jones potential; adhesion |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Functional Surfaces (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/R001766/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 13 Oct 2020 09:20 |
Last Modified: | 13 Oct 2020 15:20 |
Status: | Published |
Publisher: | The Royal Society |
Identification Number: | 10.1098/rspa.2020.0281 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:166540 |