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High Performance computing and discrete dislocation dynamics: Plasticity of micrometer sized specimens

Weygand, D.; Senger, J.; Motz, C.; Augustin, W.; Heuveline, V.; Gumbsch, P.

Abstract:
A parallel discrete dislocation dynamics tool is employed to study the size dependent plasticity of small metallic structures. The tool has been parallelised using OpenMP. An excellent overall scaling is observed for different loading scenarios.

The size dependency of the plastic flow is confirmed by the performed simulations for uniaxial loading and micro-bending tests. The microstructural origin of the size effect is analysed. A strong influence of the initial microstructure on the statistics of the deformation behaviour is observed, for both the uniaxial and bending scenario.



Zugehörige Institution(en) am KIT Fakultät für Maschinenbau (MACH)
Institut für Angewandte und Numerische Mathematik (IANM)
Institut für Angewandte Materialien - Computational Materials Science (IAM-CMS)
Publikationstyp Buchaufsatz
Jahr 2008
Sprache Englisch
Identifikator ISBN: 978-3-540-88301-2
KITopen-ID: 1000012556
Erschienen in High Performance Computing in Science and Engineering '08. Ed.: W.E. Nagel
Verlag Springer, Berlin
Seiten 507-523
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