Revising Elastic-Plastic Contact Models of Fractal Surfaces

DOI

10.2991/icmia-16.2016.23How to use a DOI?

Keywords

contact; elastic-plastic; fractal surface; asperity deformation

Abstract

This paper conducts revisions of the existing elastic-plastic contact models for a single asperity with the fractal surface topographies generated from W-M functions. The expressions of the critical parameters and the contact load-area relationship are deduced in the terms of fractal parameters, asperity's base diameter and material properties. Numerical analysis suggest that the contact models' critical parameters derived strictly in a convincing and easier way in this study are scale-dependent on the asperity's base size and determined jointly by fractal parameters, asperity's base diameter and material properties. The transformation condition for an asperity transfers from elastic to plastic contact and the contact load-area relationship are consistent with those in classical contact mechanics but contrary to the existing fractal contact models.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Cuicui Ji
AU  - Wei Jiang
PY  - 2016/11
DA  - 2016/11
TI  - Revising Elastic-Plastic Contact Models of Fractal Surfaces
BT  - Proceedings of the 2016 5th International Conference on Measurement, Instrumentation and Automation (ICMIA 2016)
PB  - Atlantis Press
SP  - 123
EP  - 129
SN  - 1951-6851
UR  - https://doi.org/10.2991/icmia-16.2016.23
DO  - 10.2991/icmia-16.2016.23
ID  - Ji2016/11
ER  -