MODELLING OF THE PRESSURE AND DENSITY SENSITIVE BEHAVIOUR OF SAND WITHIN THE FRAMEWORK OF HYPOPLASTICITY
In this paper a hypoplastic model proposed by Gudchus and Bauer is presented which is apt to describe the mechanical Keyboard behaviour of loose and dense sand within a wide range of pressures and densities using a single set of constants.State changes are assumed to depend on the current void ratio, the Cauchy stress tensor and the stretching tens