Impact damages detection on composite materials by THz imaging
- Destic, Fabien
- Bouvet, Christophe
Publication date
November 2016
DOI Publisher
The Author(s). Published by Elsevier Ltd.Abstract
AbstractThis paper presents a Non-Destructive Testing (NDT) method based on the penetration properties of terahertz (THz) waves. A CW raster-scanning THz imaging setup, using a 3.8 THz Quantum Cascade Laser as a source, is used to perform NDT of polypropylene/polypropylene composite samples.Results from transmission and reflection THz imaging are compared to ultrasound C-scan. THz images in reflection give similar results to C-scan whereas THz transmission images provide more information about delaminations and cracks in the fiber fabrics
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