This presentation is a review of mechanical test methods for accurately measuring the anisotropic plastic deformation behavior of metal sheets and tubes subjected to multiaxial stress states. Special attention is given to the measurement and modeling of the anisotropic plastic deformation behavior of lightweight metals commonly used in industry and to the validation of the material models based on anisotropic yield functions for large plastic strain ranges. The effects of the material models used in the metal forming simulations on the improvement of the predictive accuracy for forming defects are also discussed.

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