Article (Scientific journals)
Unified stress update algorithms for the numerical simulation of large deformation elasto-plastic and elasto-viscoplastic processes
Ponthot, Jean-Philippe
2002In International Journal of Plasticity, 18 (1), p. 91-126
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Keywords :
unified stress update algorithms; numerical simulation; large deformation
Abstract :
[en] This paper is concerned with unified stress update algorithms for elastoplastic and elasto-viscoplastic constitutive equations for metals submitted to large deformations. We present here a newly developed time integration algorithm which is, in the case of J2 flow theory material behavior, an extension to the viscoplastic range of the classical radial return algorithm for plasticity. The resulting unified implicit algorithm is both efficient and very inexpensive. Moreover, if there is no viscosity effect (rate-independent material) the presented algorithm degenerates exactly into the classical radial return algorithm for plasticity. (C) 2002 Elsevier Science Ltd. All rights reserved.
Disciplines :
Mechanical engineering
Materials science & engineering
Author, co-author :
Ponthot, Jean-Philippe  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS-Mécanique numérique non linéaire
Language :
English
Title :
Unified stress update algorithms for the numerical simulation of large deformation elasto-plastic and elasto-viscoplastic processes
Publication date :
2002
Journal title :
International Journal of Plasticity
ISSN :
0749-6419
Publisher :
Pergamon Press - An Imprint of Elsevier Science, Oxford, United Kingdom
Volume :
18
Issue :
1
Pages :
91-126
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 November 2009

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