A GENERAL FRAMEWORK FOR THE NUMERICAL SOLUTION OF PROBLEMS IN FINITE
P. Papadopoulos and J. Lu
Comp. Meth. Appl. Mech. Engng, 159, pp. 1-18, (1998)
This article discusses a general framework for the analysis of
initial/boundary-value problems of rate-independent finite elasto-plasticity
based on the theory of Green and Naghdi. A constitutive model is developed
within the context of the above theory employing generalized measures
of Lagrangian strain and work-conjugate measures of stress.
Computational implications of the proposed formulation are discussed
in conjunction with an implicit time integrator for the differential/algebraic
equations of plastic flow. Representative numerical simulations demonstrate
the applicability and predictive capacity of the model in the presence
of large plastic deformations.
(If your institution subscribes to the electronic version of the journal,
for a copy of this article.)