بررسي شكل دهي معكوس شونده صفحات نازك با در نظر گرفتن پديده باشينگر

An Investigation into the Reverse Forming of Sheet Metal by Considering Bauschinger Effect

This paper investigates the forming of sheet metal forming under cycling loading by considering the Bauschinger effect. Different proposed plasticity models which can handle this kind of deformation process have been reviewed in details. For instance, isotropic, kinematic and combined forms in the linear and non-linear cases including the well-known Yoshida and Chabocheʹs models have been studied. The ability of the best proposed model has been examined in the forming of reverse cup drawing and the obtained results have been compared with some other experimental results. The normalized axial stress, von-mises stress and the punch forces for both first and second stages have been calculated for different materials and thicknesses.