Subloading surface cyclic plastic model for soil based on generalized plasticity. (II) Constitutive equation and identification

According to the principle of generalized plasticity, the constitutive equation of subloading surface cyclic model is firstly formulated; and the loading criterion and the identification of material parameters are built. The applicability of the constitutive equation to the prediction of real soil deformation, including massing effect and ratcheting effect, is verified by predicting monotonic and cyclic loading behavior of sands under several stress paths.