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Detection and evaluation of barely visible impact damage in woven glass fabric reinforced polyamide 6.6/6 composite using ultrasonic imaging, X-ray tomography and optical profilometry

Article dans une revue avec comité de lecture
Author
MIQOI, Nada
24541 Georgia Tech Lorraine [Metz]
7736 PSA Peugeot - Citroën [PSA]
POMAREDE, Pascal
24541 Georgia Tech Lorraine [Metz]
ccMERAGHNI, Fodil
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
DECLERCQ, Nico Felicien
24541 Georgia Tech Lorraine [Metz]
ccGUILLAUMAT, Laurent
211916 Laboratoire Angevin de Mécanique, Procédés et InnovAtion [LAMPA]
LE COZ, Gael
DELALANDE, Stéphane
7736 PSA Peugeot - Citroën [PSA]

URI
http://hdl.handle.net/10985/19356
DOI
10.1177/1056789520957703
Date
2020
Journal
International Journal of Damage Mechanics

Abstract

The present experimental work investigates the response of woven glass fabric reinforced polyamide 6.6/6 subjected to drop weight impact loading. The main objective is the development and the introduction of a new experimental procedure/approach, based on different complementary detection techniques, that aims at investigating the damage induced by impact loading in thermoplastic woven fabric composites. The developed approach is intended to be generalized to other types of composite materials. The main idea is to assess all the experimental results obtained through the developed procedure with a direct investigation method. The latter consists in the Permanent Indentation (PI) measurement providing an indicator of the damage criticality in the composite sample. To this end, several non-destructive testing methods are carried-out and their experimental findings are analyzed and cross-linked. The identification of the different damage mechanisms, caused by the drop weight impact, is performed using X-Ray micro-computed tomography (mCT). C-scan ultrasonic investigation is conducted according to two types: transmission and reflection for the detection of the impact damage and the identification of the induced degradation area. B-scan imaging are then obtained through specific post-processing of the impacted surface to extract the permanent indentation (PI). The latter is validated through surface flatness measurement using the highly resolved 3D optical profilometry. The correlation between the X-Ray tomography results and the permanent indentation measurement is then established. It correlates the PI level with the damage mechanisms of a barely visible impact damage (BVID) in woven glass reinforced polyamide 6.6/6 composite.

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  • Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA)
  • Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3)

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