128 Springback analysis of Aluminum alloy sheet

Abstract

Since aluminum alloy sheet metal have strong mechanical features such as low Yong's modulus, low ductility and strong initial anisotropy (high Lankford value), it remains one of the most difficult materials to predict the final shape of springback. In order to solve the problem, we applied the Yoshida-Uemori model for an aluminum alloy sheet metal s. In the present research, we have investigated the experimental Bauschinger effect and anisotropy of aluminum sheet metal. The calculated results show the great agreement with the corresponding experimental springback for aluminum alloy sheet. The efficiency of Yoshida-Uemori model for aluminum sheet metal is proved.