Finite Element Modelling of Electro-hydraulic Forming of Sheets

High velocity sheet metal forming methods, such as electromagnetic forming and electro hydraulic forming (EHF), are based on high voltage electrical energy. This paper gives theoretical details about high strain rate forming in the Electrohydraulic forming process. Following the experimental results in the literature, a simulation of the high strain rate forming was prepared in ABAQUS-CAE wherein a dynamic loading on a sheet blank was applied and was allowed to plastically deform following the Johnson-Cook material model. The results of the simulation were validated from the experimental values obtained from existing literature. After the model was validated further simulations were carried out to obtain similar results for other commercially available materials like Al 6061 T6 alloy and Mg-Gd-Y alloy.