Footprints in sand: the response of a granular material to local perturbations.


Journal Article

We experimentally determine ensemble-averaged responses of granular packings to point forces, and we compare these results to recent models for force propagation in a granular material. We use 2D granular arrays consisting of photoelastic particles: either disks or pentagons, thus spanning the range from ordered to disordered packings. A key finding is that spatial ordering of the particles is a key factor in the force response. Ordered packings have a propagative component that does not occur in disordered packings.

Full Text

Cited Authors

  • Geng, J; Howell, D; Longhi, E; Behringer, RP; Reydellet, G; Vanel, L; Clément, E; Luding, S

Published Date

  • July 2, 2001

Published In

Volume / Issue

  • 87 / 3

Start / End Page

  • 035506 -

PubMed ID

  • 11461569

Pubmed Central ID

  • 11461569

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.87.035506


  • eng