Material testing of magnesium alloy AZ31B using a finite element polycrystal method based on a rate independent crystal plasticity model

Giorgio Vago, Tetsuo Oya

Research output: Contribution to journalConference articlepeer-review

Abstract

Magnesium and its alloys are attractive structural light materials because they have a high spe-cific strength and high specific stiffness. That is why their usage in high performance automotive and aerospace applications has been increased. However, their high anisotropy and low ductility could bring to forming failure, to avoid these a better accuracy for metal forming simulation is re-quired. The identification of macroscopic parameters is expensive due to the experiments needed to find them, the use of multi-scale approach allows to find parameters for the model through easier experiments. A finite element polycrystal method, based on a rate independent polycrystal plasticity model, is implemented in order to perform the material testing of a cast magnesium alloy AZ31B. The parameters of the model are adjusted to better fit the experimental data through a trial and error process.

Original languageEnglish
Article number012057
JournalIOP Conference Series: Materials Science and Engineering
Volume967
Issue number1
DOIs
Publication statusPublished - 2020 Nov 17
Event39th International Deep-Drawing Research Group Conference, IDDRG 2020 - Seoul, Korea, Republic of
Duration: 2020 Oct 262020 Oct 30

Keywords

  • Finite element polycrystal method
  • Multi-scale
  • hcp materials
  • magnesium
  • material modelling
  • numerical investigations
  • twinning

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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