Stepwise modelling method for post necking characterisation of anisotropic sheet metal

Modelling and simulation are important tools during design development processes. For accurate predictions of, e.g. manufacturing processes or final product performance, reliable material data is needed. Usually, the applied models calibrated by utilising direct methods such as conventional uniaxial tensile/compression tests but also inverse occasionally applied. Recently, an effective method, stepwise modelling method (SMM), was presented. By using SMM, flow stress from initial yielding, beyond necking to fracture, can be determined. However, developed for sheet materials having isotropic von Mises hardening. In this paper SMM extended post characterisation of anisotropic metals Barlat yield 2000 criterion. The novel analyse plasticity widely used aluminium alloy AA6016 in T4 condition AA5754 H111 condition. latter has reported show serrated known Portevin–Le Chatelier effect. obtained curves agree well with form tensile up point credible fracture. Furthermore, showed that it could handle effect yielding AA5754-H111. Hence, approach characterise hardening a variety thereby contributes efficient model calibration.