Ce travail présente les développements théoriques et numériques fait afin de proposer la modélisation de l'interaction d'une onde électromagnétique avec un ou plusieurs défauts affectant un matériau ferromagnétique stratifié plan en vue d'application en contrôle non destructif. L'approche théorique ainsi que des comparaisons de résultats numériques sont présentées. detection of surface breaking flaws in ferromagnetic materials such as steels. In this context, simulation tools can be used to improve the understanding of experimental signals, optimize the design of sensors or evaluate the performance of ECT procedures. CEA has developed for many years semi-analytical models embedded into the simulation platform CIVA dedicated to non-destructive testing. Following a previous work carried out at the laboratory in the case of one flaw located in a cylindrical ferromagnetic part, the developments presented herein address the case of a flaw located inside a planar, stratified and ferromagnetic medium. The theoretical approach will be presented, as well as comparisons between simulation results and measured data obtained from the literature