Influence of the size of the intruder on the reorganization of a 2D granular medium

Authors :: Pierre Jop
Aymeric Merceron
Alban Sauret
Surface du Verre et Interfaces (SVI)
SAINT-GOBAIN-Centre National de la Recherche Scientifique (CNRS)
University of California [Santa Barbara] (UCSB)
University of California
Source :: Granular Matter, Granular Matter, Springer Verlag, 2019, 21 (3), ⟨10.1007/s10035-019-0936-0⟩, Granular Matter, vol 21, iss 3, GRANULAR MATTER, vol 21, iss 3
Publication Year :: 2019
Publisher :: Springer Science and Business Media LLC, 2019.
Abstract: International audience; We consider the rearrangements of a vertical two-dimensional granular packing induced by the withdrawal of an intruder. Here, we focus on the influence of the size of the intruder on the reorganization process. The long term evolution of the granular packing is investigated as well as the avalanche dynamics that characterize the short term rearrangements around the intruder. For small enough intruder, we observe the formation of arches that periodically destabilize and influence the reorganization dynamics of the twodimensional packing through larger rearrangement events.

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