Affordable Access

Lattice model of correlated forces in granular solids near jamming.

Authors
Type
Published Article
Journal
Physical Review E
1550-2376
Publisher
American Physical Society
Publication Date
Volume
87
Issue
5
Pages
52203–52203
Identifiers
PMID: 23767526
Source
Medline

Abstract

We have devised a lattice model to study force correlations in jamming granular solids in d=2 dimensions. We perform biased Monte Carlo simulations, favoring configurations with more bonds that bear no force, to "starve" the network of bonds and thereby control the distance from the isostatic point J. Increasingly long-ranged correlations are visible as point J is approached, not in the structure of the network of force-bearing bonds but in the spatial extent of perturbations of the force magnitudes consistent with a given starved network. The correlation length so defined diverges as the isostatic point is approached as a power law with an exponent of about ξ~δZ(-5). This divergence is much stronger than for the length scale of "soft modes" observed in jammed systems approaching point J from above.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments