A Unified Elastoplastic Model for Clay and Sand with the SMP Criterion

摘要: In this paper, the modified Cam-clay model is revised to a unified elastoplastic for clay and sand under three-dimensional stress conditions in following two aspects. Firstly, method transformation of curved surface SMP (Spatially Mobilized Plane) criterion cone transformed principal space proposed by introducing stress. The applied model. realizes consistency from shear yield failure combination with clay. Secondly, order develop constitutive sand, new hardening parameter derived, which can not only describe dilatancy but also be reduced plastic volumetric strain normally consolidated