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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 2, issue 3/4
Nonlin. Processes Geophys., 2, 121–130, 1995
https://doi.org/10.5194/npg-2-121-1995
© Author(s) 1995. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

Special issue: Complex space-time geophysical structures

Nonlin. Processes Geophys., 2, 121–130, 1995
https://doi.org/10.5194/npg-2-121-1995
© Author(s) 1995. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  31 Dec 1995

31 Dec 1995

Experimental study of the statistics of slipping events in solid friction

S. Ciliberto and C. Laroche S. Ciliberto and C. Laroche
  • Ecole Normale Supérieure de Lyon, Laboratoire de Physique, C.N.R.S. URA 1325, 46, Allée d'Italie, 69364 Lyon, France

Abstract. The statistics of the stick-slip motion is studied in two experiments, where elasticity is distributed either on a surface or on a volume. The rough surface is realised by embedding steel spheres in an elastic substrate whereas the volume is constituted by several layers of rubber spheres. Both systems produce a complex dynamics characterized by power law with non-trivial exponents in the distribution of the amplitude of the slipping events and in the power spectra of the friction force time evolution. The dependence of the results on the system size is also studied.

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