A new modelling framework that alleviates many of the shortcomings and complications of traditional constitutive modelling is presented. The framework is inspired by kinematic hardening multi-surface plasticity. Eventually, however, the governing equations can be expressed in a simple rate form akin to hypoelasticity, thus ensuring an efficient numerical implementation. The framework includes dependence on recent stress history, e.g. hysteresis, as a natural feature. Importantly, it can be calibrated directly to laboratory data, thereby obviating the need for traditional material parameters (Young’s modulus, friction angle, etc). An example of a basic model applicable to undrained total stress is presented and an example of its application to lateral loading of a monopile foundation from the PISA project is demonstrated.
Kristian Krabbenhøft, Jørgen Krabbenhøft and Morten Andersen Herfelt
Keywords: None provided
Publisher: DFI