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- Title
On convergence properties of variational constitutive updates for elasto-visco-plasticity.
- Authors
Brassart, Laurence; Stainier, Laurent
- Abstract
This paper deals with J2 elasto-visco-plasticity and analyzes in details a variational formulation of associated constitutive updates. The variational formulation is briefly presented and compared with the traditional radial return algorithm. Differences are highlighted in the case of combined hardening and rate-dependency models. In that case, the variational formulation introduces an algorithmic parameter, which effect is analyzed on precision and convergence behavior. A practical rule is proposed for choosing an optimal value for this parameter (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
- Publication
GAMM Mitteilungen, 2012, Vol 35, Issue 1, p26
- ISSN
0936-7195
- Publication type
Article
- DOI
10.1002/gamm.201210003