Cristin-resultat-ID: 1166377
Sist endret: 21. februar 2015, 10:42
NVI-rapporteringsår: 2014
Resultat
Vitenskapelig artikkel
2014

Modelling the plastic anisotropy of aluminium alloy 3103 sheets by polycrystal plasticity models

Bidragsytere:
  • Kai Zhang
  • Bjørn Holmedal
  • Odd Sture Hopperstad og
  • Stephane Dumoulin

Tidsskrift

Modelling and Simulation in Materials Science and Engineering
ISSN 0965-0393
e-ISSN 1361-651X
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2014
Volum: 22
Hefte: 7
Sider: 239 - 262
Artikkelnummer: 075015

Importkilder

Scopus-ID: 2-s2.0-84910089807

Beskrivelse Beskrivelse

Tittel

Modelling the plastic anisotropy of aluminium alloy 3103 sheets by polycrystal plasticity models

Sammendrag

The plastic anisotropy of AA3103 sheets in the cold-rolled condition (H18 temper) and in the fully annealed condition (O temper) was studied experimentally and numerically in this work. The microstructure and texture of the two materials were characterized and the anisotropic plastic behaviour was measured by in-plane uniaxial tension tests along every 15◦ from the rolling direction to the transverse direction of the sheet. Five polycrystal plasticity models, namely the full-constraint Taylor model, the Alamel model, the Alamel type III model, the visco-plastic self-consistent crystal plasticity model and the crystal plasticity finite element method (CPFEM), were employed to predict the plastic anisotropy in the plane of the sheet. Experimentally observed grain shapes were taken into consideration. In addition, a hybrid modelling method was employed where the advanced yield function Yld2004-18p was calibrated to stress points provided by CPFEM simulations along 89 in-plane strain-paths. This provided a close approximation to in-plane CPFEM predictions and is one convenient way to include the influence of realistic grain morphology on the plastic anisotropy. Based on comparisons between the experimental and the predicted results, the hybrid modelling method is considered as the most accurate way of describing the plastic anisotropy. The Alamel type III and Alamel models are also recommended as accurate and time-efficientmodels for predicting the plastic anisotropy of the AA3103 sheets in H18 and O tempers.

Bidragsytere

Kai Zhang

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet
Aktiv cristin-person

Bjørn Holmedal

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet

Odd Sture Hopperstad

  • Tilknyttet:
    Forfatter
    ved Institutt for konstruksjonsteknikk ved Norges teknisk-naturvitenskapelige universitet

Stephane Christophe Dumoulin

Bidragsyterens navn vises på dette resultatet som Stephane Dumoulin
  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS
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