A new approach for a 3D deep drawing using an Asymptotic Numerical method

This paper presents an Asymptotic Numerical Method (A.N.M.) to simulate a 3 D hemispherical deep-drawing of a circular sheet. An elastoplastic model ba sed on the plasticity deformation theory is adopted. The problem discretisa tion is performed by a shell finite element well adapted for problems invol ving large displacements and large rotations. A comparison with results obt ained by the help of the industrial code Abaqus evaluates the performance a nd the interest of the method.