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Generalized plasticity and the modelling of soil behaviour
Author(s) -
Pastor M.,
Zienkiewicz O. C.,
Chan A. H. C.
Publication year - 1990
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610140302
Subject(s) - plasticity , monotonic function , yield surface , plasticity theory , range (aeronautics) , mathematics , geotechnical engineering , calculus (dental) , statistical physics , geology , engineering , structural engineering , finite element method , constitutive equation , mathematical analysis , physics , thermodynamics , aerospace engineering , medicine , dentistry
The paper outlines the theory of generalized plasticity in which yield and plastic potential surfaces need not be explicitly defined, and shows how a very effective general model describing the behaviour of sands and of clays under monotonic or transient loading can be developed. The model is currently one of the simplest and yet one of the most effective ones for describing the full range of behaviour. The hierarchical structure of the model limits the number of parameters which have to be experimentally determined for a given material to those strictly necessary for the problem at hand. A discussion of currently used models is included.