Abstract
The plastic deformation and the failure behaviour of an anisotropic rolled magnesium sheet AZ31 is explored under quasi-static mixed-mode tensile loading conditions at room temperature. The loading is realised using a custom-made Arcan-type fixture equipped with an anti-buckling device. The evolution of the strains during loading is analysed by means of digital image correlation. The failure strain as a function of the loading direction and sheet orientation is quantified. A phenomenological plasticity model is applied in the framework of Finite Elements to simulate the observed deformation histories. Deformation is modelled by a combination of symmetric and asymmetric plastic potential. It is shown that the model is able to simulate the deformation behaviour experienced during the mixed-mode tests.
