Determination of the process-induced microstructure of woven glass fabric reinforced polyamide 6.6/6 composite using terahertz pulsed imaging
Article dans une revue avec comité de lecture
Author
CALVO-DE LA ROSA, J. 
POMAREDE, PascalANTONIK, P. MERAGHNI, FodilCITRIN, D.S.RONTANI, D.LOCQUET, A.Abstract
Terahertz pulsed imaging, combined with spatial and temporal signal and image processing, is performed to visualize the woven fabric in the various plies of glass-fiber-reinforced polymer laminates and to determine quantitative parameters characterizing the microstructure such as fiber-bundle orientation and the distance between yarns. The results are in quantitative agreement with the microstructure features provided by the manufacturer. In addition, the employed signal processing shows an excellent capability to reveal the weave pattern from noisy C-scans - where a visual-based analysis can be problematic - and to assess the process-induced microstructure.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lecture; ; ;MERAGHNI, Fodil; ; ; (Springer Verlag, 2019)
The consequences of a four-point bending test, up to 12 mm, are examined by emitting 1 MHz ultrasonic guided waves in woven carbon fiber reinforced polymer specimens, using coda wave interferometry (CWI), revealing a ...
-
Article dans une revue avec comité de lecture; ; ; ;MERAGHNI, Fodil; ; (Elsevier, 2018)
Polarization-sensitive terahertz imaging is applied to characterize subsurface damage in woven carbon fiber-reinforced composite laminates in this study. Terahertz subsurface spectral imaging based on terahertz deconvolution ...
-
Ultrasonic investigation of the effect of compressive strains on 3D periodic bi-material structures Article dans une revue avec comité de lecture; ;POMAREDE, Pascal; ; PIOTROWSKI, Boris; MERAGHNI, Fodil; (EDP Sciences, 2022-06)
Due to the specific elastic properties such as high stiffness to mass ratio, regular microstructure materials are widely used in the industry. The need for nondestructive evaluation is ubiquitous to ensure material quality. ...
-
Article dans une revue avec comité de lecture;MERAGHNI, Fodil; ; ; (Springer Verlag, 2018)
The paper proposes a new experimental methodology, based on ultrasonic measurements, that aims at evaluating the anisotropic damage in woven semi-crystalline polymer composites through new damage indicators. Due to their ...
-
Communication avec acte; ;MERAGHNI, Fodil; ; ; GUILLAUMAT, Laurent; (2019)
Dans cette étude, des essais d’impacts à faible vitesse ont été réalisés sur un polyamide 6.6/6 renforcé de fibres de verre tissées. L’objectif principal est d’étudier qualitativement et quantitativement l’endommagement ...