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Sliding friction and contact mechanics of elastomers on rough surfaces

  • A. Le Gal
  • X. Yang
  • M. Klüppel
Part of the Lecture Notes in Applied and Computational Mechanics book series (LNACM, volume 27)

Abstract

The modeling of rubber frictional properties on rough surfaces is of considerable importance for the prediction of tire traction properties. The presented work consists in a physically based model describing the dynamic contact and the sliding friction of elastomers on rough surfaces. The self-affine character of rough substrates is analytically treated with correlation functions which depend on three surface descriptors. This allows a generalization of the concepts introduced by Greenwood and Williamson and a quantitative estimation of the velocity dependent real area of contact. The hysteresis friction can be modelled in the frame of this theory, originating from the energy losses due to the local deformation of the rubber from the surface asperities during dynamic contact. The experimental results show that the frictional behaviour under wet conditions is fairly described by the hysteresis friction. The transition from wet to dry friction is explained via an adhesion component assumed to be related with the real area of contact. This approach is also confirmed by the experiment and gives a deeper insight in the relationship between the material viscoelastic properties, the surface roughness and the frictional behavior.

Keywords

Dynamic Contact Frictional Behavior Surface Asperity Real Area Rough Substrate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Z. Radó, PhD-Thesis, Pennsylvania State University, USA (1994)Google Scholar
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    M. Klüppel and G. Heinrich, Rubber Chem. Technol. 73, 578 (2000); ibid. Paper. No. 43, AOS Rubber Division Meeting, Chicago, 13.–16. May (1999)Google Scholar
  3. 3.
    M. Klüppel, A. Müller, A. Le Gal and G. Heinrich, “Dynanniic contact of tires with road tracks”, Paper No. 49, ACS Meeting, San Francisco, April 28–30 (2003)Google Scholar
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    B. N. J. Persson, J. Chem. Phys. 115, 3840 (2001); ibid. Paper No. 24, ACS Rubber Division Meeting, Cleveland, Ohio, 16. – 19. Oct. (2001)CrossRefGoogle Scholar
  5. 5.
    A. Le Gal, X. Yang and M. Klüppel, Journal of Chemical Physics, in press (2005)Google Scholar

Copyright information

© Springer 2006

Authors and Affiliations

  • A. Le Gal
    • 1
  • X. Yang
    • 1
  • M. Klüppel
    • 1
  1. 1.Deutsches Institut für Kautschuktechnologie e.V.Hannover

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