Shearing behavior of polydisperse media
Soft Condensed Matter
2009-11-10 v1
Abstract
We study the shearing of polydisperse and bidisperse media with a size ratio of 10. Simulations are performed with a the two dimensional shear cell using contact dynamics. With a truncated power law for the polydisperse media we find that they show a stronger dilatancy and greater resistance to shearing than bidisperse mixtures. Motivated by the practical problem of reducing the energy needed to shear granular media, we introduce "point-like particles" representing charged particles in the distribution. Even though changing the kinematic behavior very little, they reduce the force necessary to maintain a fixed shearing velocity.
Cite
@article{arxiv.cond-mat/0407755,
title = {Shearing behavior of polydisperse media},
author = {Martin Wackenhut and Sean McNamara and Hans Herrmann},
journal= {arXiv preprint arXiv:cond-mat/0407755},
year = {2009}
}
Comments
17 pages, 15 figures