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Direct 3D Simulation of Plastic Flow from EBSD Data

  • Nathan R. Barton
  • Joel V. Bernier
  • Ricardo A. Lebensohn
  • Anthony D. Rollett
Chapter

Given high quality EBSD scans of microstructures, researchers naturally wish to assess the properties and performance of the material. For virtually all aspects of material behavior, this involves a model for the material’s response, and considerable uncertainty in the predictions arises from uncertainties in both model form and model parameters. Classical crystal viscoplasticity is often used to assess the plastic flow behavior of polycrystalline materials (Kocks et al. 1998); but more sophisticated approaches are under active development. For example, Arsenlis et al. (2004) have included the effects of detailed dislocation density evolution, including dislocation flux terms that capture heterogeneity in the flow; and Acharya and Beaudoin (2000) have examined interactions between lattice curvature and hardening.

Keywords

Fast Fourier Transform Slip System Mesh Refinement Orientation Distribution Function Finite Element Formulation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The work of NRB and JVB was performed under the auspices of the U.S. Department of Energy at Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 (LLNL-JRNL-405176); the support of the LDRD program is gratefully acknowledged. This work builds on contributions from many collaborators, particularly Richard Becker and Michael King for the finite element simulation results. Support from the User Productivity Enhancement and Technology Transfer (PET) of the High Performance Computing Modernization Office for ADR is gratefully acknowledged. Use of facilities by ADR provided by the MRSEC at CMU under NSF grant number DMR-0520425 is also gratefully acknowledged.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Nathan R. Barton
    • 1
  • Joel V. Bernier
    • 1
  • Ricardo A. Lebensohn
    • 1
  • Anthony D. Rollett
    • 1
  1. 1.Lawrence Livermore National LaboratoryLivermoreUSA

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