Cooperative length approach for granular media

Emanuele Caglioti, Antonio Coniglio, Hans J. Herrmann, Vittorio Loreto and Mario Nicodemi

Physica A: Statistical Mechanics and its Applications, 1999, vol. 265, issue 1, 311-318

Abstract: We analyze the non-equilibrium relaxation properties of granular materials in the perspective of a cooperative length approach of Adam and Gibbs. The existence of complex geometrical interactions between the grains induces a rough landscape in the structure of the allowable phase space and in the configurational entropy. At their turn these effects induce the need of complex cooperative rearrangements which account for the very slow relaxation dynamics of these systems. On this basis we relate quantitatively the characteristic dynamical properties to quasistatic quantities, e.g. free-volume and configurational entropy.

Keywords: Free volume; Cooperative Regions; Configurational entropy; Slow relaxations (search for similar items in EconPapers)
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:265:y:1999:i:1:p:311-318

DOI: 10.1016/S0378-4371(98)00660-8

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