Applications of the new magnetostatic solver/ AMS preconditioner in LS-DYNA®

Previous implementations of LS-DYNA’s EM module have relied on an explicit scheme, requiring very small time-step sizes and therefore long simulation times. Recently, a new magnetostatic solver/ AMS preconditioner has been developed in LS-DYNA®. Unlike the current implementation, the new solver is unconditionally stable with respect to the time-step size and allows for the handling of materials with high permeability and low electrical conductivity. In this paper, the capabilities of the new solver is tested on the use-case of carbon fiber reinforced thermoplastic composite (CFRTPC) laminate induction heating using magnetic flux concentrators/field formers. In the current work, induction heating characterization experiments were performed on carbon fiber poly(ether ether ketone) (CF/PEEK) laminates using two different coil geometries.