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Tribology Letters
Published in: Tribology Letters 1/2015

01-04-2015 | Original Paper

A Deterministic Approach to Studying Liquid-Mediated Adhesion Between Rough Surfaces

Authors: Amir Rostami, Jeffrey L. Streator

Published in: Tribology Letters | Issue 1/2015

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Abstract

In this work, a numerical method is developed to study the liquid-mediated adhesion between 3D rough surfaces. The presence of a wetting liquid between two rough surfaces generates a negative pressure inside the liquid film, which in turn induces tensile stresses in the contact region. Opposing these tensile stresses are the compressive stresses generated at solid–solid contact spots. An iterative deterministic contact model based on influence coefficients is employed to solve the equations of elasticity and capillarity simultaneously. Results for tensile (adhesive) force, wetted radius, average gap, and contact area between the rough surfaces are obtained. The results show that sudden changes in tensile force, average gap, and contact area occur with an increase in certain parameters, suggesting an elasto-capillary instability and surface collapse.
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Metadata
Title
A Deterministic Approach to Studying Liquid-Mediated Adhesion Between Rough Surfaces
Authors
Amir Rostami
Jeffrey L. Streator
Publication date
01-04-2015
Publisher
Springer US
Published in
Tribology Letters / Issue 1/2015
Print ISSN: 1023-8883
Electronic ISSN: 1573-2711
DOI
https://doi.org/10.1007/s11249-015-0497-2

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