Granular Elasticity without the Coulomb Condition
arXiv:cond-mat/0210557 · doi:10.1103/PhysRevLett.91.144301
Abstract
An self-contained elastic theory is derived which accounts both for mechanical yield and shear-induced volume dilatancy. Its two essential ingredients are thermodynamic instability and the dependence of the elastic moduli on compression.
4pages, 2 figures