Efficient Numerical Solution of Magnetic Field Problems in Presence of Hysteretic Media for Nondestructive Evaluation

An integral method for the solution of low frequency electromagnetic field problems in presence of hysteretic media is presented. The mathematical model is formulated in the time domain. A frequency-domain fixed point technique is proposed to determine the steady-state solution of the model in a computationally more efficient way than time-domain techniques. Numerical results on magnetic systems relevant to nondestructive evaluation (NDE) configurations are shown in order to demonstrate the effectiveness of the approach.