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Dissipation in quasistatically sheared wet and dry sand under confinement

J. E. Fiscina, M. Pakpour, A. Fall, N. Vandewalle, C. Wagner, and D. Bonn
Phys. Rev. E 86, 020103(R) – Published 24 August 2012


We investigated the stress-strain behavior of sand with and without small amounts of liquid under steady and oscillatory shear. Since dry sand has a lower shear modulus, one would expect it to deform more easily. Using a new technique to quasistatically push the sand through a tube with an enforced parabolic (Poiseuille-like) profile, we minimize the effect of avalanches and shear localization. We observe that the resistance against deformation of the wet (partially saturated) sand is much smaller than that of the dry sand, and that the latter dissipates more energy under flow. This is also observed in large-amplitude oscillatory shear measurements using a rotational rheometer, showing that the effect is robust and holds for different types of flow.

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  • Received 13 March 2012


©2012 American Physical Society

Authors & Affiliations

J. E. Fiscina1,2,3,*, M. Pakpour4,5, A. Fall5, N. Vandewalle2, C. Wagner1, and D. Bonn5,6,†

  • 1Experimental Physics, Saarland University, D-66123, Saarbrücken Germany
  • 2GRASP, Physics Department B5, University of Liège, B-4000 Liège, Belgium
  • 3Gravitation Group, Tata Institute of Fundamental Research, 1 Homi Bhabha Road, 400005 Mumbai, India
  • 4Institute for Advanced Studies in Basic Sciences, P.O. Box 45195-1159 Zanjan, Iran
  • 5van der waals-Zeeman Istitute, University of Amsterdam, Science Park 904, Amsterdam, the Netherlands
  • 6Laboratoire de Physique Statistique de l'ENS, 24 Rue Lhomond, 75231 Paris Cedex 05, France

  • *j.fiscina@mx.uni-saarland.de
  • d.bonn@uva.nl

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Vol. 86, Iss. 2 — August 2012

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The editors of Physical Review E are pleased to announce that the journal’s stated scope has been expanded to explicitly include the term “Biological Physics.”

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