Toggle Main Menu Toggle Search

Open Access padlockePrints

A generalized Backward Euler scheme for the integration of a mixed isotropic-kinematic hardening model for clays

Lookup NU author(s): Dr Gaetano EliaORCiD



The mechanical response of intact clays is characterised by highly non-linear behaviour, memory of the past strain-history, evolving anisotropy, non-coaxiality and, when cemented, mechanically induced bond degradation phenomena. In recent years a number of constitutive models have been proposed to mathematically describe these features, often being characterised by complex formulations leading to non-trivial problems in their numerical integration. On the other hand, accuracy and stability are recognised as crucial requirements in the development of any integration algorithm for realistic material models, in order to ensure the necessary computational correctness and efficiency in their use within Finite Element codes. This paper describes a fully implicit stress-point algorithm for the numerical integration of a single surface mixed isotropic-kinematic hardening plasticity model for bonded clays.

Publication metadata

Author(s): Amorosi A, Boldini D, Elia G, Germano V

Editor(s): OƱate E; Owen DRJ

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: COMPLAS 2005: VIII International Conference on Computational Plasticity

Year of Conference: 2005

Date deposited: 20/01/2010

Publisher: CIMNE