Simulation of electromagnetic inspection techniques using FEM analysis

Currently, the development of new production integrated applications of micromagnetic NDT methods require a detailed expert knowledge in order to proof the feasibility and to optimize the application of specific devices, sensors, mechanics and set-up parameters. Often, a huge amount of experiments is necessary to establish the formulas, describing the correlations between Micromagnetic behaviour and mechanical material characteristics. These developments are often very costly in terms of time and money, which is why the use of such NDT techniques often remains limited. Analytical and numerical simulations can be used in order to predict the a priori electromagnetic behaviour of the material in different inspection situations and to reduce the experimental efforts in order to accelerate new developments. Therefore, Fraunhofer IZFP has developed an FEM simulation platform using Flux software (developed by Cedrat) which is able to simulate the electromagnetic field distributions and reproduce the 3MA Micromagnetic signatures in different inspection situations.