Some Applications of the Barlat 1991 Yield Criterion

Nowadays the accuracy of (FEM) analyses of forming processes is to a large extent determined by the assumption of realistic constitutive equations for the description of the material and its interface with tooling. Concerning aluminium alloys there are reasons for attention to the first topic: these...

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Bibliographic Details
Published in:CIRP annals 1995, Vol.44 (1), p.185-188
Main Authors: Habraken, F.A.C.M., Dautzenberg, J.H.
Format: Article
Language:English
Subjects:
aluminium
anisotropy
Applied sciences
Elasticity. Plasticity
Exact sciences and technology
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
yield
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Summary:Nowadays the accuracy of (FEM) analyses of forming processes is to a large extent determined by the assumption of realistic constitutive equations for the description of the material and its interface with tooling. Concerning aluminium alloys there are reasons for attention to the first topic: these alloys often show significant anisotropy and in general have the reputation of being troublesome in analyses of forming processes. Through some applications, it will be shown that a yield criterion proposed by Barlat et al. (1991) gives good results. Last criterion is based on the generally accepted framework of a yield surface and associative flow. It thereby preserves simple operational use.
ISSN:0007-8506
DOI:10.1016/S0007-8506(07)62303-8