A model reduction technique based on the PGD for elastic-viscoplastic computational analysis

Authors:
N. Relun;D. Néron;P. A. Boucard
Affiliations:
LMT-Cachan, ENS Cachan / CNRS / UPMC / PRES UniverSud Paris, Cachan Cedex, France 94235;LMT-Cachan, ENS Cachan / CNRS / UPMC / PRES UniverSud Paris, Cachan Cedex, France 94235;LMT-Cachan, ENS Cachan / CNRS / UPMC / PRES UniverSud Paris, Cachan Cedex, France 94235
Venue:
Computational Mechanics
Year:
2013

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Abstract

In this paper a model reduction approach for elastic-viscoplastic evolution problems is considered. Enhancement of the PGD reduced model by a new iterative technique involving only elastic problems is investigated and allows to reduce CPU cost. The accuracy of the solution and convergence properties are tested on an academic example and a calculation time comparison with the commercial finite element code Abaqus is presented in the case of an industrial structure.