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Proceedings 2018, 2(8), 455; https://doi.org/10.3390/ICEM18-05377

Laser Ultrasound Flexible System for Non-contact Inspection of Medium Size and Complex Shaped Composite Structures Made of Carbon Fiber Reinforced Polymer

Centre Spatial de Liège, STAR Research Unit, Liège Université, 4031 Angleur, Belgium
Presented at the 18th International Conference on Experimental Mechanics (ICEM18), Brussels, Belgium, 1–5 July 2018.
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Published: 21 June 2018
PDF [1931 KB, uploaded 2 July 2018]

Abstract

We present the development of a contactless laser ultrasound system for nondestructive inspection of CFRP complex structures. Ultrasound are generated by a thermoelastic effect resulting from a green pulsed laser insulating a point of the inspected part. The resulting displacement of the surface point is probed by a two-wave mixing based interferometer working in the near infrared. The system is flexible and completely fiber-coupled. It is able to provide C-scans on complex shaped CFRP aeronautical structures.
Keywords: composite materials; laser ultrasonics; nondestructive inspection composite materials; laser ultrasonics; nondestructive inspection
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Vandenrijt, J.-F.; Languy, F.; Thizy, C.; Georges, M. Laser Ultrasound Flexible System for Non-contact Inspection of Medium Size and Complex Shaped Composite Structures Made of Carbon Fiber Reinforced Polymer. Proceedings 2018, 2, 455.

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