Extensive experimental evidence indicates that yield surfaces exhibit significant anisotropic hardening. Subsequent yield surfaces are both translated and deformed in stress space. A viscoplasticity theory which describes anisotropic hardening by using a Lagrangian deformation mapping of the elastic domain is applied to the quantitative modelling of observed yield surface deformation of 1100-0 aluminum subject to non-proportional loading in tension-torsion space.
Issue Section:Research Papers
Topics:Anisotropy, Deformation, Hardening, Aluminum, Modeling, Stress, Surface deformation, Tension, Torsion, Viscoplasticity
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