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Proceedings Paper

Statistical mechanics of dense granular media
Author(s): M. Nicodemi; A. Coniglio; A. de Candia; A. Fierro; M. Pica Ciamarra; M. Tarzia
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Paper Abstract

We discuss some recent results on Statistical Mechanics approach to dense granular media. In particular, by analytical mean field investigation we derive the phase diagram of monodisperse and bydisperse granular assemblies. We show that "jamming" corresponds to a phase transition from a "fluid" to a "glassy" phase, observed when crystallization is avoided. The nature of such a "glassy" phase turns out to be the same found in mean field models for glass formers. This gives quantitative evidence to the idea of a unified description of the "jamming" transition in granular media and thermal systems, such as glasses. We also discuss mixing/segregation transitions in binary mixtures and their connections to phase separation and "geometric" effects.

Paper Details

Date Published: 18 January 2006
PDF: 12 pages
Proc. SPIE 6039, Complex Systems, 603901 (18 January 2006); doi: 10.1117/12.644274
Show Author Affiliations
M. Nicodemi, Univ. degli Studi di Napoli Federico II (Italy)
Complesso Univ. di Monte Sant'Angelo (Italy)
A. Coniglio, Univ. degli Studi di Napoli Federico II (Italy)
Complesso Univ. di Monte Sant'Angelo (Italy)
Coherentia CNR-INFM (Italy)
A. de Candia, Univ. degli Studi di Napoli Federico II (Italy)
Complesso Univ. di Monte Sant'Angelo (Italy)
A. Fierro, Univ. degli Studi di Napoli Federico II (Italy)
Complesso Univ. di Monte Sant'Angelo (Italy)
Coherentia CNR-INFM (Italy)
M. Pica Ciamarra, Univ. degli Studi di Napoli Federico II (Italy)
Complesso Univ. di Monte Sant'Angelo (Italy)
M. Tarzia, Univ. degli Studi di Napoli Federico II (Italy)
Complesso Univ. di Monte Sant'Angelo (Italy)


Published in SPIE Proceedings Vol. 6039:
Complex Systems
Axel Bender, Editor(s)

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