A Master equation for force distributions in polydisperse frictional particles
Soft Condensed Matter
2015-05-29 v1
Abstract
An incremental evolution equation, i.e. a Master equation in statistical mechanics, is introduced for force distributions in polydisperse frictional particle packings. As basic ingredients of the Master equation, the conditional probability distributions of particle overlaps are determined by molecular dynamics simulations. Interestingly, tails of the distributions become much narrower in the case of frictional particles than frictionless particles, implying that correlations of overlaps are strongly reduced by microscopic friction. Comparing different size distributions, we find that the tails are wider for the wider distribution.
Cite
@article{arxiv.1505.07701,
title = {A Master equation for force distributions in polydisperse frictional particles},
author = {Kuniyasu Saitoh and Vanessa Magnanimo and Stefan Luding},
journal= {arXiv preprint arXiv:1505.07701},
year = {2015}
}
Comments
12 pages, 7 figures. Conference proceedings for PARTICLES 2015, 28-30 September, 2015, Barcelona, Spain