Springback research of tubular structure under lateral compression using explicit and implicit FEA method

Abstract

Abstract The springback of laterally compressed thin-walled tubes is an important issue, which affects the prediction of tubular structure energy absorbing ability and the final sectional profile. So, the springback of laterally compressed tubes after plastic compression should be predicted and calculated in the process of the tube design. However, predicting the springback with traditional theoretical or experimental methods is hard. In the present paper, an explicit and implicit sequence-solving method based on ANSYS/LS-DYNA was developed for calculating and analyzing the springback of the tube under lateral compression by the code ANSYS LS-DYNA. The result implied that the explicit and implicit sequence-solving method is reasonable, and the values of the tube’s springback after lateral compression can be predicted by this FEA method.