Deterministic investigation of the contact behavior of nominally curved rough surfaces
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 13 January 2020
Issue publication date: 13 January 2020
Abstract
Purpose
This study aims to investigate the contact behavior of nominal curved surfaces with random roughness.
Design/methodology/approach
A deterministic model was applied to investigate the contact behavior. Numerical calculations were conducted on Gaussian and fractal profiles under a range of loading conditions. The deformation behavior is characterized in terms of three regimes including the elastic, elastoplastic and plastic regimes.
Findings
A linear relationship was observed between the real contact areas and normal loads, which is mainly governed by the plastic deformation. Surface roughness changes contact behavior by influence the transition of deformation regimes. Rougher surfaces generally demonstrate higher saturated plastic ratios.
Originality/value
The contact behavior of nominally curved surfaces with random roughness is understood in terms of the evolution of real contact areas and plastic ratios.
Peer review
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2019-0190.
Keywords
Acknowledgements
The authors acknowledge the financial support by the National Natural Science Foundation of China (51775460, 51905456), the China Postdoctoral Science Foundation (2019M653836XB) and the Fundamental Research Funds for the Central Universities (2682019CX033).
Citation
Zhang, Y., Zhang, X. and Jin, Z. (2020), "Deterministic investigation of the contact behavior of nominally curved rough surfaces", Industrial Lubrication and Tribology, Vol. 72 No. 6, pp. 743-748. https://doi.org/10.1108/ILT-05-2019-0190
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited