The incremental holonomic boundary-value problem in elastoplasticity has been shown to be characterized by a variational inequality. The problem may be approximated, however, by a perturbed minimization problem, characterized by a variational equality. This formulation is used as the basis for const
Numerical approximation of incremental infinitesimal gradient plasticity
β Scribed by Patrizio Neff; Antje Sydow; Christian Wieners
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 419 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0029-5981
- DOI
- 10.1002/nme.2420
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π SIMILAR VOLUMES
The initial-boundary value problem of elastoplasticity is considered in the form of a variational inequality, with primary unknowns the displacement, plastic strain and internal variables. The well-posedness of this problem is reviewed, and results are presented for the convergence of a new fully di
## Abstract The paper presents the theory and the numerics of a thermodynamically consistent formulation of gradient plasticity at small strains. Starting from the classical local continuum formulation, which fails to produce physically meaningful and numerically converging results within localizat