Shell Finite Element for Deep Drawing Problems: Computational Aspects and Results

We present an implicit finite element approach for the simulation of the deep-drawing of arbitrary shaped workpieces based on an updated Lagrangian formulation. Two triangular shell elements have been created (DKT18 and DKT12) taking into account bending effects, large displacements, large rotations and large strains, anisotropic elasto-plastic behaviour. Penalization methods are used to simulate contact conditions with Coulomb friction. Various numerical results are presented and compared with experimental ones.