Journal
EPL
Volume 81, Issue 3, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1209/0295-5075/81/34006
Keywords
-
Categories
Ask authors/readers for more resources
Physical experiments on wave propagation on granular material control two macroscopic parameters that are assumed to characterize the response of a given assembly: the isotropic pressure p(0) and the solid volume fraction phi. Here, by means of numerical simulation, we investigate the effect of the coordination number (Z) over bar (the average number of contacts per particle) and the fluctuation of the number of contacts per particle Z'. We adopt a numerical protocol to create several initial packings characterized by the same volume fraction and, for a given isotropic pressure, we are able to obtain different coordination numbers. That is, pressure and coordination number, for a given volume fraction, are independent. The result is that packings with fixed volume fraction and isotropic pressure exhibit a different elastic response. We attribute this behavior only to the coordination number as we find, surprisingly, that (Z) over bar is linked to Z'. Copyright (C) EPLA, 2008.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available