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

Jin, Tao; Mourad, Hashem M.; Bronkhorst, Curt A.; Livescu, Veronica

doi:10.1007/s00466-017-1470-8

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

Journal Article · Wed Sep 13 00:00:00 EDT 2017 · Computational Mechanics

DOI:https://doi.org/10.1007/s00466-017-1470-8· OSTI ID:1407880

Jin, Tao ^[1];

^[1];

^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Here, we present an explicit finite element formulation designed for the treatment of strain localization under highly dynamic conditions. We also used a material stability analysis 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.

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Research Organization:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1407880

Report Number(s):: LA-UR-17-20920; TRN: US1702926

Journal Information:: Computational Mechanics, Vol. 61, Issue 1-2; ISSN 0178-7675

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 10 works

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

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