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Issue 48, 2017
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Rattler-induced aging dynamics in jammed granular systems

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Abstract

Granular materials jam when developing a network of contact forces able to resist the applied stresses. Through numerical simulations of the dynamics of the jamming process, we show that the jamming transition does not occur when the kinetic energy vanishes. Rather, as the system jams, the kinetic energy becomes dominated by rattler particles, which scatter within their cages. The relaxation of the kinetic energy in the jammed configuration exhibits a double power-law decay, which we interpret in terms of the interplay between backbone and rattler particles.

Graphical abstract: Rattler-induced aging dynamics in jammed granular systems

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Article information


Submitted
03 Oct 2017
Accepted
18 Nov 2017
First published
20 Nov 2017

Soft Matter, 2017,13, 9132-9137
Article type
Paper

Rattler-induced aging dynamics in jammed granular systems

F. Giacco, L. de Arcangelis, M. Pica Ciamarra and E. Lippiello, Soft Matter, 2017, 13, 9132
DOI: 10.1039/C7SM01976A

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