KONG Liang, HUI Zhi-xin, WANG Yan-chang. A revised modified Cambridge model based on the theory of rotational kinematic hardening[J]. 2007, 28(S1).DOI:
The modified Cambridge model is one of the most popular elastoplastic models for soil
but it can not simulate the soil constitutive behavior during large stress reversals and the stress induced anisotropy as well. In this paper
the rotational kinematic hardening theory is incorporated into modified Cambridge model
and the rotational hardening mechanism of ellipse yield surface is presented. Then
a new modified Cambridge model is extended from isotropic to rotational kinematic hardening in a simple manner which avoids the introduction of complicated rules and new materials parameters. The new model not only preserves the behavior of the isotropic hardening model under monotonic loading conditions
but also can reflects the soil constitutive behavior during large stress reversals and the stress induced anisotropy