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Multi-asperity elliptical JKR model for adhesion of a surface with non-axially symmetric asperities

Perni, Stefano and Prokopovich, Polina ORCID: 2015. Multi-asperity elliptical JKR model for adhesion of a surface with non-axially symmetric asperities. Tribology International 88 , pp. 107-114. 10.1016/j.triboint.2015.03.001

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Surfaces can present high levels of topographic asymmetry and, therefore, theories based on the assumption of symmetry cannot be effectively employed. A new multi-asperity adhesion model that assumes that asperities are not perfectly hemispherical is presented here, this model is based on the elliptical JKR model for a single asperity. The adhesion between a soft tissue with asperities greatly asymmetric and a polymer was modelled, the predicted adhesion forces were successfully validated against experimentally obtained data. Moreover, simulations with a simpler model, which assumes symmetrical asperities, have been also carried out; these results were significantly different from those obtained, using both the newly developed model and those determined experimentally. This highlights the importance of the model presented in this work.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Pharmacy
Subjects: R Medicine > RS Pharmacy and materia medica
Additional Information: Available online 14 March 2015
Publisher: Elsevier
ISSN: 0301-679X
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 1 March 2015
Last Modified: 07 Nov 2023 06:12

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