Development of surface topography for the rail-wheel contact

M. Schargott, Valentin Leonidovich Popov, A. I. Dmitriev, S. G. Psakhie

Research output: Contribution to journal › Article

Abstract

We investigate the development of surface topography of two solids in a high-pressure frictional contact, like the rail-wheel contact. The friction process is simulated with the method of Movable Cellular Automata. It is shown that a quasi-fluid layer develops that influences the change of the surface topography and shows stochastic vertical migration. The resulting surfaces are analysed and the corresponding power spectra calculated. We further present a model that describes the basic processes in the quasi-fluid layer, like plastic deformation, detachment of wear particles and their reintegration and calculate the resulting time-dependent power spectra numerically and analytically.

Original language	English
Pages (from-to)	1542-1548
Number of pages	7
Journal	Wear
Volume	265
Issue number	9-10
DOIs	https://doi.org/10.1016/j.wear.2007.12.018
Publication status	Published - 30 Oct 2008
Externally published	Yes

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Keywords

Fokker-Planck-equation
Movable cellular automata
Stochastic surfaces

ASJC Scopus subject areas

Engineering(all)
Mechanical Engineering
Surfaces, Coatings and Films

Cite this

Schargott, M., Popov, V. L., Dmitriev, A. I., & Psakhie, S. G. (2008). Development of surface topography for the rail-wheel contact. Wear, 265(9-10), 1542-1548. https://doi.org/10.1016/j.wear.2007.12.018

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Access to Document

10.1016/j.wear.2007.12.018