title: From elasticity to hypoplasticity: dynamics of granular solids.
abstract: "Granular elasticity," useful for calculating static stress distributions in granular media, is generalized by including the effects of slowly moving, deformed grains. The result is a hydrodynamic theory for granular solids that agrees well with models from soil mechanics.
authors.affiliation: Theoretische Physik, Universität Tübingen, 72076 Tübingen, Germany.
authors.forename: Yimin
authors.initials: Y
authors.lastname: Jiang
authors.forename: Mario
authors.initials: M
authors.lastname: Liu