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Computational Mechanics
Erschienen in: Computational Mechanics 1-2/2018

13.09.2017 | Original Paper

Finite element formulation with embedded weak discontinuities for strain localization under dynamic conditions

verfasst von: Tao Jin, Hashem M. Mourad, Curt A. Bronkhorst, Veronica Livescu

Erschienen in: Computational Mechanics | Ausgabe 1-2/2018

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Abstract

We present an explicit finite element formulation designed for the treatment of strain localization under highly dynamic conditions. A material stability analysis is used to detect the onset of localization behavior. Finite elements with embedded weak discontinuities are employed with the aim of representing subsequent localized deformation accurately. The formulation and its algorithmic implementation are described in detail. Numerical results are presented to illustrate the usefulness of this computational framework in the treatment of strain localization under highly dynamic conditions, and to examine its performance characteristics in the context of two-dimensional plane-strain problems.
Vorheriger Artikel Foreword
Nächster Artikel A level set approach for shock-induced – phase transition of RDX

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Fußnoten
1
The notched bar geometry is often used in problems involving void formation and growth [60, 61]. We use it here to exercise the strain localization capabilities of the present numerical framework, in loading regimes where voiding is generally not observed.
 
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Metadaten
Titel
Finite element formulation with embedded weak discontinuities for strain localization under dynamic conditions
verfasst von
Tao Jin
Hashem M. Mourad
Curt A. Bronkhorst
Veronica Livescu
Publikationsdatum
13.09.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Computational Mechanics / Ausgabe 1-2/2018
Print ISSN: 0178-7675
Elektronische ISSN: 1432-0924
DOI
https://doi.org/10.1007/s00466-017-1470-8

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