Experimental and numerical approach to identify major heating mechanism in induction thermography of carbon fiber reinforced plastic components

Induction based heating is a promising technique for the detection of cracks in electrically conducting structures using thermography. This technique can be extended to composite structures especially carbon fiber reinforced plastic (CFRP) components due to the presence of conducting carbon fibers. However, there have been various conflicting mechanisms suggested in the literature. This paper discusses about the experimental and various numerical approaches to understand the major heating mechanism happening inside the composites