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Comparison of non-destructive techniques for impact damage area assessment in aramid/epoxy composites
Andrea Manes 1 , Stephanie Nunes 2 , Alvaro Jiménez 1 , Sandro Amico 2 , Marco Giglio 1

1  Politecnico di Milano, Department of Mechanical Engineering, Milano (20156), Italy
2  PPGE3M, Federal University of Rio Grande do Sul, Porto Alegre (91501-970), Brazil

Published: 11 June 2018 by MDPI AG in Proceedings of The Eighteenth International Conference of Experimental Mechanics in The Eighteenth International Conference of Experimental Mechanics
MDPI AG, Volume 2; 10.3390/ICEM18-05320

This research focused on the assessment of the damaged area on aramid/epoxy composites subjected to high velocity impact. Digital X-ray radiography and active pulsed thermography techniques were used for performing post-mortem analysis of the impacted specimens (8 to 28 aramid layers). Two types of projectiles were used: 9 mm Luger FMJ and .357 Magnum FMJ. Dedicated algorithms were developed to post-process the thermograms obtained and the results are compared with the damaged diameter measured directly on the X-ray radiographs. The output of the three methods are therefore compared and discussed.

Keywords: Thermography, ImPACT, aramid, digital X-ray radiography

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