A numerical model for transient magneto-elastic problems is presented. A ti
me stepping solver is included in a non-linear iterative scheme to allow ri
te bi-directional coupling consideration. The 3D FEM solver is divided into
Jour operations: An eddy current problem is solved with a t - phi formulat
ion, with edge and nodal elements. Local application of virtual work princi
ple is used to calculate magnetic force distribution. This is put in the me
chanical problem, solved with modal equations. The deformation and the move
ment of the structures are taken into account by moving the nodes of the me
sh with the computed displacements, with Lagrangian form in the magnetic so
lver. The model has been validated on a TEAM workshop problem.