The first part of this study discusses the influence of element type on parameters such as accuracy of the FE simulation, simulation time and convergence. Guidelines on optimal implementation of element types are proposed. It is shown that an inappropriate choice of element type results in difficulties in convergence of the simulation or gives rise to problems such as shear locking in elements. In the second part of this study a series of finite element simulations using the Hill’48 planar anisotropic yield criterion and a standard U-shape forming test based on the NUMISHEET’93 benchmark was performed. The effectiveness of different isotropic hardening laws and different contact models is investigated. The most appropriate hardening and contact definitions are defined from the viewpoint of optimal springback prediction. Finally, the influence of the orientation of sheet strips relative to the rolling direction on springback angles is evaluated.
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