Creep Motion of an Intruder within a Granular Glass Close to Jamming

R. Candelier and O. Dauchot
Phys. Rev. Lett. 103, 128001 – Published 17 September 2009

Abstract

We experimentally study the dynamics of an intruder dragged at a constant force in a horizontally vibrated monolayer of grains. At moderate packing fractions, the intruder moves rapidly as soon as the force is applied. Above some threshold value it has an intermittent creep motion with strong fluctuations reminiscent of “crackling noise”. These fluctuations are critical at the jamming transition ϕJ unveiled in a previous study. The transition separates a regime with local free volume rearrangements from a regime where the displacement field is strongly heterogeneous and resembles force chain patterns.

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  • Received 15 June 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.128001

©2009 American Physical Society

Authors & Affiliations

R. Candelier and O. Dauchot

  • SPEC, CEA-Saclay, URA 2464 CNRS, 91 191 Gif-sur-Yvette, France

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Issue

Vol. 103, Iss. 12 — 18 September 2009

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