• Corpus ID: 239009651

Collective drifts in vibrated granular packings: the interplay of friction and structure

@inproceedings{Plati2021CollectiveDI,
  title={Collective drifts in vibrated granular packings: the interplay of friction and structure},
  author={Andrea Plati and Andrea Puglisi},
  year={2021}
}
We simulate vertically shaken dense granular packings with horizontal periodic boundary conditions. A coordinated translating motion of the whole medium emerges when the horizontal symmetry is broken by disorder or defects in the packing and the shaking is weak enough to conserve the structure. We argue that such a drift originates in the interplay between structural symmetry breaking and frictional forces transmitted by the vibrating plate. A non-linear ratchet model with stick-slips… 

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