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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.
Author(s): Amorosi A, Boldini D, Elia G, Germano V
Editor(s): Oñate 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
URL: http://congress.cimne.upc.es/complas05/admin/Files/FilePaper/p136.pdf
