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High Performance Computing and Discrete Dislocation Dynamics: Plasticity of Micrometer Sized Specimens

In: High Performance Computing in Science and Engineering '08

Author

Listed:
  • D. Weygand

    (KIT, Institut für Zuverlässigkeit von Bauteilen und Systemen)

  • J. Senger

    (KIT, Institut für Zuverlässigkeit von Bauteilen und Systemen)

  • C. Motz

    (KIT, Institut für Zuverlässigkeit von Bauteilen und Systemen)

  • W. Augustin

    (KIT, Steinbuch Computing Centre)

  • V. Heuveline

    (KIT, Steinbuch Computing Centre)

  • P. Gumbsch

    (KIT, Institut für Zuverlässigkeit von Bauteilen und Systemen)

Abstract

Summary 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.

Suggested Citation

  • D. Weygand & J. Senger & C. Motz & W. Augustin & V. Heuveline & P. Gumbsch, 2009. "High Performance Computing and Discrete Dislocation Dynamics: Plasticity of Micrometer Sized Specimens," Springer Books, in: Wolfgang E. Nagel & Dietmar B. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '08, pages 507-523, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-88303-6_36
    DOI: 10.1007/978-3-540-88303-6_36
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