Shearing of frictional sphere packings
Soft Condensed Matter
2015-10-27 v2 Materials Science
Abstract
We measure shear response in packings of glass beads by pulling a thin, rough, metal plate vertically through a bed of volume fraction phi, which is set, before the plate is pulled, in the range 0.575 to 0.628. The yield stress is velocity independent over 4 decades and increases exponentially with phi, with a transition at phi approximately 0.595. An analysis of the measured force fluctuations indicates that the shear modulus is significantly smaller than the bulk modulus.
Keywords
Cite
@article{arxiv.1012.5023,
title = {Shearing of frictional sphere packings},
author = {Jean-François Métayer and Donald J. Suntrup and Charles Radin and Harry L. Swinney and Matthias Schröter},
journal= {arXiv preprint arXiv:1012.5023},
year = {2015}
}
Comments
minor changes, added reference