Shaking a Box of Sand
Condensed Matter
2009-11-07 v2
Abstract
We present a simple model of a vibrated box of sand, and discuss its dynamics in terms of two parameters reflecting static and dynamic disorder respectively. The fluidised, intermediate and frozen (`glassy') dynamical regimes are extensively probed by analysing the response of the packing fraction to steady, as well as cyclic, shaking, and indicators of the onset of a `glass transition' are analysed. In the `glassy' regime, our model is exactly solvable, and allows for the qualitative description of ageing phenomena in terms of two characteristic lengths; predictions are also made about the influence of grain shape anisotropy on ageing behaviour.
Cite
@article{arxiv.cond-mat/0103076,
title = {Shaking a Box of Sand},
author = {Peter F. Stadler and Anita Mehta and Jean-Marc Luck},
journal= {arXiv preprint arXiv:cond-mat/0103076},
year = {2009}
}
Comments
Revised version. To appear in Europhysics Letters