Elaborated subloading surface model for accurate description of cyclic mobility in granular materials

Abstract The description of the cyclic mobility observed prior to liquefaction in geomaterials requires sophisticated constitutive formulation describe plastic deformation induced during loading with small stress amplitude inside yield surface. This requirement is realized subloading surface model , which enclosing a purely elastic domain not assumed, while assumed other elastoplasticity models. has been applied widely monotonic/cyclic behaviors metals, soils, rocks, concrete, etc., and sufficient predictions have attained some extent. will be elaborated so as predict also accurately this article. First, rigorous translation rule similarity center normal surfaces, i.e., core, formulated. Further, mixed hardening terms volumetric deviatoric strain rates rotational are formulated anisotropy granular materials. In addition, material functions for modulus, function isotropic hardening/softening modified accurate mobility. Then, validity present verified through comparisons various test data