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Force fluctuations in a pushed granular material

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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.

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Authors and Affiliations

  1. Laboratoire de Mécanique et Génie Civil, Case 048, Université Montpellier II 34095 Montpellier Cedex 5, France e-mail: nouguier@lmgc.univ-montp2.fr, , , , , , FR

    C. Nouguier, C. Bohatier, J. J. Moreau & F. Radjai

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  1. C. Nouguier
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  2. C. Bohatier
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  3. J. J. Moreau
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  4. F. Radjai
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Received: 7 January 2000

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Nouguier, C., Bohatier, C., Moreau, J. et al. Force fluctuations in a pushed granular material. GM 2, 171–178 (2000). https://doi.org/10.1007/PL00010912

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  • DOI: https://doi.org/10.1007/PL00010912

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