On Phase Transition and Self-Organized Critical State in Granular Packings
| dc.creator | Aharonov, Einat | |
| dc.creator | Sparks, David | |
| dc.date | 1998-12-11 | |
| dc.date.accessioned | 2026-07-07T03:12:22Z | |
| dc.date.available | 2026-07-07T03:12:22Z | |
| dc.description | We model two-dimensional systems of granular aggregates confined between two planes and demonstrate that at a critical grain volume fraction an abrupt rigidity transition occurs. This transition is observed both in static and shear tests. The grain volume fraction at which the transition occurs, $ν_c$, decreases with increasing friction between the grains. Densely packed grains, with a volume fraction $ν> ν_c$, display an elastic-plastic rheology. Dilute packings, with $ν<ν_c$, display gas-like characteristics. Packings with $ν=ν_c$ display phase coexistance. It is shown that when volume fraction is allowed to change freely (using constant normal stress boundary condition), it evolves spontaneously to $ν_c$ under a wide range of boundary conditions, exhibiting 'self-organized criticality'. | |
| dc.identifier | https://arxiv.org/abs/cond-mat/9812204 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/9812204 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/28882 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.subject | Materials Science | |
| dc.title | On Phase Transition and Self-Organized Critical State in Granular Packings | |
| dc.type | text |