Detection of Delamination in GFRP and CFRP by Microwaves with Focusing Mirror Sensor
A technique to detect delamination in composite materials by noncontact, rapid and high sensitive microwave reflectometry with a focusing mirror sensor was proposed. The focusing mirror sensor, which has high sensitivity and resolution, is expected to detect delamination sensitively. In this paper, the ability of microwave inspection to detect delamination in glass fiber reinforced plastic (GFRP) and carbon fiber reinforced plastic (CFRP) was verified. As the results, the existences of 100 μm thick delamination in 3 mm thick GFRP laminate and 2 mm thick CFRP laminate were detected.
Shijie Zhu, Baorong Ni and Dongying Ju
A. Hosoi et al., "Detection of Delamination in GFRP and CFRP by Microwaves with Focusing Mirror Sensor", Materials Science Forum, Vol. 750, pp. 142-146, 2013