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An invariant distribution in static granular media

Aste, T; Di Matteo, T; Saadatfar, M; Senden, TJ; Schröter, M; Swinney, HL; (2007) An invariant distribution in static granular media. EPL , 79 (2) 10.1209/0295-5075/79/24003.

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We have discovered an invariant distribution for local packing configurations in static granular media. This distribution holds in experiments for packing fractions covering most of the range from random loose packed to random close packed, for bead packs prepared both in air and in water. Assuming only that there exist elementary cells in which the system volume is subdivided, we derive from statistical mechanics a distribution that is in accord with the observations. This universal distribution function for granular media is analogous to the Maxwell-Boltzmann distribution for molecular gasses. © Europhysics Letters Association.

Type: Article
Title: An invariant distribution in static granular media
DOI: 10.1209/0295-5075/79/24003
UCL classification: UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Engineering Science
URI: http://discovery.ucl.ac.uk/id/eprint/1360877
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