Analysis of electromagnetic forming process using sequential electromagnetic-structural coupling simulation

作者：Kim Jeong^*; Noh Hak Gon; Song Woo Jin; Kang Beom Soo

来源：International Journal of Applied Electromagnetics and Mechanics, 2015, 49(2): 263-278.

DOI：10.3233/JAE-150011

• Electromagnetic forming
• sequential coupling simulation
• electromagnetic-structural coupling
• ANSYS/Multiphysics
• high speed forming

A sequential coupled field analysis of an electromagnetic free bulging process was performed using the FEM. A 2D axisymmetric electromagnetic model based on the magnetic vector potential is proposed for the calculation of the magnetic field and Lorentz forces, and then, the Newmark integration method is used to calculate the transient dynamic plastic deformation of a sheet during the free bulging process. In the finite element model, the effect of sheet deformation on the electromagnetic field analysis is taken into account. In order to confirm the sequential electromagnetic-structural coupling analysis, an experiment with an electromagnetic forming apparatus was carried out. This showed that the final bulge height of the sheet predicted using the method proposed in this paper was in good agreement with the experimental one.

• 出版日期2015