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Granular Matter

, Volume 2, Issue 4, pp 171–178 | Cite as

Force fluctuations in a pushed granular material

  • C. Nouguier
  • C. Bohatier
  • J. J. Moreau
  • F. Radjai

Abstract

We analyse the time evolution of stresses in a noncohesive granular bed cut by the motion of a tool. Our numerical simulations both in two and three dimensions reveal large fluctuations of the force acting on the tool. These fluctuations have a decreasing exponential distribution. We find that, in spite of fluctuations, the mean force is well fitted by an analytical form obtained from a limit analysis with Coulomb's failure criterion.

Key words Numerical simulations, contact dynamics, force fluctuations, statistical analysis 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • C. Nouguier
    • 1
  • C. Bohatier
    • 1
  • J. J. Moreau
    • 1
  • F. Radjai
    • 1
  1. 1.Laboratoire de Mécanique et Génie Civil, Case 048, Université Montpellier II 34095 Montpellier Cedex 5, France e-mail: nouguier@lmgc.univ-montp2.frFR

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