Multiscale modeling and simulation of crystal plasticity based on dislocation patterning in polycrystal

Naoshi Yamaki, Yoshiteru Aoyagi, Kazuyuki Shizawa

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A multiscale model on dislocation patterning of cell structure and subgrain for polycrystal is newly developed on the basis of reaction-diffusion theory. A FD simulation for dislocation patterning and a FE one for crystal deformation are simultaneously carried out for a FCC polycrystal at large strain. Reflecting stress value on stress-effect coefficients, it is numerically predicted that the evolution of dislocation pattern in a polycrystal is different in response to the stress condition of each grain.

Original languageEnglish
Pages (from-to)205-210
Number of pages6
JournalKey Engineering Materials
Volume340-341 I
DOIs
Publication statusPublished - 2007 Jan 1

Keywords

  • Cell structure
  • Crystal plasticity
  • Dislocation patterning
  • Multiscale modeling
  • Polycrystal
  • Subgrain

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Multiscale modeling and simulation of crystal plasticity based on dislocation patterning in polycrystal'. Together they form a unique fingerprint.

Cite this