Development of surface topography for the rail-wheel contact

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

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


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 languageEnglish
Pages (from-to)1542-1548
Number of pages7
Issue number9-10
Publication statusPublished - 30 Oct 2008
Externally publishedYes


  • Fokker-Planck-equation
  • Movable cellular automata
  • Stochastic surfaces

ASJC Scopus subject areas

  • Engineering(all)
  • Mechanical Engineering
  • Surfaces, Coatings and Films

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