Examining the predictive capabilities of a bounding surface plasticity-based hyperelastic constitutive model for unsaturated granular soils

The performance of a recently developed state-dependent constitutive model for unsaturated granular soils is evaluated. employs the Bounding Surface plasticity framework and evaluates elastic strains assuming hyperelastic behavior. To realistically simulate deformation soils, mechanical behavior was modeled without purely component. inherent hydro-mechanical coupling realized by introducing Bishop-type effective stress, an appropriate work-conjugate variable, soil-water characteristic curve function. Relevant details about development, parameter estimation, assessment model’s predictive capabilities are presented. evaluated with experimental data obtained drained constant-water stress paths. With given set values, simulates main features that characterize shear volumetric over wide range matric suction, density, net confining pressure. This found to be true both