Comptes Rendus
Surface mechanics: facts and numerical models
Adhesive contact in the context of multi-asperity interaction
Comptes Rendus. Mécanique, Volume 339 (2011) no. 7-8, pp. 502-517.

In order to analyse the scale effect of roughness and adhesion in contact between solids, we introduce in this work a 3D model of elastic contact combined with the adhesive theory. The model of roughness with different fractal dimension is introduced to study the adhesive contact in the elastic state at different length scales.

The results of this study show that the scale of roughness modifies the distribution law of the contact pressure and stiffness. The introduction of the adhesive force and fractal property of roughness clearly shows the combined influence of roughness scale and adhesive force on contact stiffness.

Published online:
DOI: 10.1016/j.crme.2011.05.008
Keywords: Roughness, Adhesion, Slopes, Fractal, 3D elastic contact model

H. Zahouani 1; M. Ben Tkaya 1; S. Mezghani 2; C. Pailler-Mattéi 1, 3

1 University of Lyon, laboratoire de tribologie et dynamique des systemes, UMR CNRS 5513, ENISE-ECL, 58 rue Jean-Parot, 42000 St Etienne, France
2 Laboratoire de mécanique et de procèdes de fabrication, EA 4106, arts et metiers ParisTech, rue Saint Dominique, BP 508, 51006 Châlons-en-Champagne cedex, France
3 University Claude-Bernard Lyon 1, ISPB, laboratoire de biophysique, 69003 Lyon, France
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H. Zahouani; M. Ben Tkaya; S. Mezghani; C. Pailler-Mattéi. Adhesive contact in the context of multi-asperity interaction. Comptes Rendus. Mécanique, Volume 339 (2011) no. 7-8, pp. 502-517. doi : 10.1016/j.crme.2011.05.008.

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