2003/10/31 by P. Van
Physics and Astronomy · #cond-mat
published as International Journal of Solids and Structures, 2004, V41/21, p5921-5927 · 10 pages, 1 figure, small revision
arxiv created 2003/11/07 · arxiv updated 2009/12/01
The classical continuum mechanical model of granular media of rational thermodynamics results in a Coulomb-Mohr type equilibrium stress-strain relation. The proof is based on a two component material model introducing a scalar internal variable. Here we will show how one can get similar stress-strain relations without assuming a balance of substructural interactions, considering only the restrictions of the Second Law of thermodynamics.