A hyperelastic model for soils with stress-induced and inherent anisotropy

Abstract In this paper, modelling of the superposition stress-induced and inherent anisotropy soil small strain stiffness is presented in framework hyperelasticity. A simple hyperelastic model, capable reproducing variable stiffness, extended by replacement stress invariant with mixed stress–microstructure to introduce constant cross-anisotropic component. convenient feature new model low number material constants directly related parameters commonly used literature. The proposed description can be incorporated as a elastic core development some more sophisticated hyperelastic-plastic models overconsolidated soils. It also an independent analyses involving problems, such dynamic simulations wave propagation. Various options features anisotropic are investigated. directional response compared experimental data available