Analysis by x-ray microtomography of a granular packing undergoing compaction
Soft Condensed Matter
2009-11-10 v1 Statistical Mechanics
Abstract
Several acquisitions of X-ray microtomography have been performed on a beads packing while it compacts under vertical vibrations. An image analysis allows to study the evolution of the packing structure during its progressive densification. In particular, the volume distribution of the pores reveals a large tail, compatible to an exponential law, which slowly reduces as the system gets more compact. This is quite consistent, for large pores, with the free volume theory. These results are also in very good agreement with those obtained by a previous numerical model of granular compaction.
Cite
@article{arxiv.cond-mat/0308367,
title = {Analysis by x-ray microtomography of a granular packing undergoing compaction},
author = {Patrick Richard and Pierre Philippe and Fabrice Barbe and Stéphane Bourlès and Xavier Thibault and Daniel Bideau},
journal= {arXiv preprint arXiv:cond-mat/0308367},
year = {2009}
}
Comments
4 pages, 4 figures. Latex (revtex4). to be published in Phys. Rev. E