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1 results

  • 12 - Scale C

  • from Part III - Applications I
  • Tadashi Hasebe, Kobe University, Japan
  • Book:
    Field Theory of Multiscale Plasticity
    Published online:
    14 December 2023
    Print publication:
    04 January 2024, pp 604-678

  • Summary

    Until quite recently, discussions on “polycrystals” have been rather concentrated on or confined to how to realistically evaluate the averaged (macroscopic) stress-strain response, focusing on, e.g., relaxed constraint even with FEM simulations. This chapter discusses new perspectives related to Scale C and the attendant theory and modeling for polycrystalline materials including nanocrystals based on the field theory (they mostly are the latest achievements). Emphasis here is placed on the collective effects brought about by a large number of composing grains on the meso- and macroscopic deformation behavior of polycrystals, in the context of hierarchy of polycrystalline plasticity. For this purpose, a series of systematically designed finite element simulations have been conducted.