Macroscopic yield function predicted by crystal plasticity simulation on ultrafine-grained aluminum

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this study, using experiment results obtained by electron backscatter diffraction, information on crystal orientation is introduced into a computational model for crystal plasticity simulation considering the effects of grain boundaries and dislocation sources to express the effect of the microstructure of ultrafine-grained metals. Finite-element simulations are performed for a polycrystal of an aluminum plate under biaxial tension. The multiscale crystal plasticity simulations depict the yield surface of the ultrafine-grained aluminum produced by accumulative roll-bonding processes. The anisotropic material coefficients of a higher-ordered yield function for ultrafine-grained aluminum are derived using a genetic algorithm.

Original languageEnglish
Title of host publicationAdvances in Engineering Plasticity and its Application XIII
EditorsFusahito Yoshida, Hiroshi Hamasaki
PublisherTrans Tech Publications Ltd
Pages249-254
Number of pages6
ISBN (Print)9783035710243
DOIs
Publication statusPublished - 2017 Jan 1
Event13th Asia-Pacific Symposium on Engineering Plasticity and its Applications, AEPA 2016 - Hiroshima, Japan
Duration: 2016 Dec 42016 Dec 8

Publication series

NameKey Engineering Materials
Volume725 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other13th Asia-Pacific Symposium on Engineering Plasticity and its Applications, AEPA 2016
CountryJapan
CityHiroshima
Period16/12/416/12/8

Keywords

  • Crystal plasticity
  • Dislocation
  • Genetic algorithm
  • Mechanical anisotropy
  • Ultrafine-grained metal
  • Yield surface

ASJC Scopus subject areas

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

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  • Cite this

    Aoyagi, Y. (2017). Macroscopic yield function predicted by crystal plasticity simulation on ultrafine-grained aluminum. In F. Yoshida, & H. Hamasaki (Eds.), Advances in Engineering Plasticity and its Application XIII (pp. 249-254). (Key Engineering Materials; Vol. 725 KEM). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.725.249