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Model for Solid-Liquid and Solid-Solid Friction of Rough Surfaces With Adhesion Hysteresis

Published

Author(s)

Michael Nosonovsky

Abstract

Mechanisms of energy dissipation during solid-solid and solid-liquid friction are discussed. A conservative van der Waals adhesion force, when combined with surface imperfectness, such as deformation, leads to adhesion histeresis (AH). When an asperity slides upon a substrate, the substrate is subjected to a loading-unloading cycle, and energy is dissipated due to the AH. Another mechanism, which leads to energy dissipation, involves energy barriers between metastable states due to surface roughness. Both mechanisms are fundamental for sliding and result in both solid-liquid and solid-solid friction.
Citation
Journal of Chemical Physics

Keywords

adhesion, contact angle, friction

Citation

Nosonovsky, M. (2017), Model for Solid-Liquid and Solid-Solid Friction of Rough Surfaces With Adhesion Hysteresis, Journal of Chemical Physics (Accessed April 15, 2024)
Created February 19, 2017