Stick-slip Transition in the Scalar Arching Model
Condensed Matter
2007-05-23 v1
Abstract
When some granular material contained into a silo is pushed upwards with a piston, an irregular stick-slip motion of the system of grains is observed. We show how one can adapt the `Scalar Arching Model' -- proposed as a model for giant stress fluctuations in silos -- in order to describe this stick-slip phenomenon. As a function of the sensitivity of the system to mechanical noise, the system exhibit two different phases: a `jammed' phase, and a `sliding' phase where irregular stick-slip is observed. We analyze the transition, which is found to be of mean-field type, and study the statistical properties of the intermittent stick-slip motion.
Cite
@article{arxiv.cond-mat/9801057,
title = {Stick-slip Transition in the Scalar Arching Model},
author = {Philippe Claudin and Jean-Philippe Bouchaud},
journal= {arXiv preprint arXiv:cond-mat/9801057},
year = {2007}
}
Comments
8 pages, latex, 6 eps figures, submitted to `Granular Matter'