A Conservative Eulerian Numerical Scheme for Elastoplasticity and Application to Plate Impact Problems
We present a numerical method for computing elastoplastic flows in metals. The method uses a conservative Eulerian formulation of elastoplasticity together with a higher order Godunov finite difference method combined with tracking of material boundaries. The Eulerian approach avoids the problem of...
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Veröffentlicht in: | Impact of computing in science and engineering 1993-12, Vol.5 (4), p.285-308 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | We present a numerical method for computing elastoplastic flows in metals. The method uses a conservative Eulerian formulation of elastoplasticity together with a higher order Godunov finite difference method combined with tracking of material boundaries. The Eulerian approach avoids the problem of mesh distortion caused by a Lagrangian remap, and can be easily extended to the computation of flows in multiple space dimensions using operator splitting. The method is validated by a comparison of computations with experiments on one-dimensional high-velocity plate impact. We obtain excellent agreement between our computations and experiment. |
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ISSN: | 0899-8248 1557-7678 |
DOI: | 10.1006/icse.1993.1013 |