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October 16, 2016Case Studies in Nondestructive Testing and EvaluationOpen Access

Impact damages detection on composite materials by THz imaging

Fabien Destic Christophe Bouvet

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Abstract

This 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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Destic et al. (2016) studied this question.

synapsesocial.com/papers/6aaf35fd9f9d90fd9ba5f16a https://doi.org/10.1016/j.csndt.2016.09.003

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