Motion of an Intruder Through a Two Dimensional Disordered Granular Medium

Pierre Cixous, Evelyne Kolb (), Jean-Claude Charmet and Chay Goldenberg
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Pierre Cixous: Physique et Mécanique des Milieux Hétérogenes (PMMH); CNRS UMR 7636 Université Pierre et Marie Curie (Paris VI); Université Denis Diderot (Paris VII); Ecole Supérieure de Physique et Chimie Industrielles (ESPCI)
Evelyne Kolb: Physique et Mécanique des Milieux Hétérogenes (PMMH); CNRS UMR 7636 Université Pierre et Marie Curie (Paris VI); Université Denis Diderot (Paris VII); Ecole Supérieure de Physique et Chimie Industrielles (ESPCI)
Jean-Claude Charmet: Physique et Mécanique des Milieux Hétérogenes (PMMH); CNRS UMR 7636 Université Pierre et Marie Curie (Paris VI); Université Denis Diderot (Paris VII); Ecole Supérieure de Physique et Chimie Industrielles (ESPCI)
Chay Goldenberg: Physique et Mécanique des Milieux Hétérogenes (PMMH); CNRS UMR 7636 Université Pierre et Marie Curie (Paris VI); Université Denis Diderot (Paris VII); Ecole Supérieure de Physique et Chimie Industrielles (ESPCI)

A chapter in Traffic and Granular Flow ’07, 2009, pp 507-516 from Springer

Abstract: Summary We measured simultaneously the drag force on a cylindrical object (intruder) induced by the flow of a dense 2D bidisperse granular material around it, and the displacements of the individual grains. This type of experiment provides a way to examine the local rheological properties of the material. We found that the measured drag force increases sharply with the packing fraction near φ *=82.35%, indicating a transition to jamming. The dependence of the drag force on φ is clearly related to a decrease in the area of the empty cavity that forms behind the intruder.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-77074-9_55

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DOI: 10.1007/978-3-540-77074-9_55

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