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Plane stress yield function for aluminum alloy sheets - part 1: theory
journal contribution
posted on 2003-09-01, 00:00 authored by F Barlat, J C Brem, Jeong YoonJeong Yoon, K Chung, R E Dick, D J Lege, F Pourboghrat, S-H Choi, E ChuA new plane stress yield function that well describes the anisotropic behavior of sheet metals, in particular, aluminum alloy sheets, was proposed. The anisotropy of the function was introduced in the formulation using two linear transformations on the Cauchy stress tensor. It was shown that the accuracy of this new function was similar to that of other recently proposed non-quadratic yield functions. Moreover, it was proved that the function is convex in stress space. A new experiment was proposed to obtain one of the anisotropy coefficients. This new formulation is expected to be particularly suitable for finite element (FE) modeling simulations of sheet forming processes for aluminum alloy sheets.
History
Journal
International journal of plasticityVolume
19Issue
9Pagination
1297 - 1319Publisher
ElsevierLocation
Kidlington, Eng.Publisher DOI
ISSN
0749-6419eISSN
1879-2154Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2002, ElsevierUsage metrics
Keywords
anisotropic materialsconstitutive modelingmetallic materialsmechanical testingyield functionScience & TechnologyTechnologyEngineering, MechanicalMaterials Science, MultidisciplinaryMechanicsEngineeringMaterials ScienceORTHOTROPIC PLASTICITYSIMULATIONPOTENTIALSCRITERIONMETALSSTRAINFLOWMechanical Engineering
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