Modeling the response of a rotating eddy current sensor for the characterization of carbon fiber reinforced composites

This work deals with the eddy current nondestructive testing of carbon fiber reinforced polymer composites (CFRPs), and the development of rapid numerical models for the simulation of the interaction between the electromagnetic field and complex structures. We show qualitatively the possibility of characterizing the CFRPs by using a rotating eddy current sensor. We make use of a numerical model which we have developed in a previous work for eddy current computation in CFRPs. This model is completed in this work to account for the impedance variation of the rotating eddy current sensor, used to determine the anisotropy factor and the fiber orientation in each ply of a layered CFRP plate.