TY - JOUR
T1 - Laminate fibre structure characterisation of carbon fibre-reinforced polymers by X-ray scatter dark field imaging with a grating interferometer
AU - Revol, Vincent
AU - Plank, Bernhard
AU - Kaufmann, Rolf
AU - Kastner, Johann
AU - Kottler, Christian
AU - Neels, Antonia
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013
Y1 - 2013
N2 - X-ray scatter dark field imaging (SDFI) using a Talbot-Lau grating interferometer has recently attracted growing interest for the non-destructive testing and evaluation of light materials. In this work, we developed the method further for the characterisation of the laminate structure of carbon fibre reinforced polymers. In particular, we used the anisotropic properties of the small angle scattering signal to image the fibre bundles running in different directions independently with excellent contrast. The results obtained for four different woven carbon fibre reinforced polymer samples were compared to high resolution X-ray computed tomography results. We found that SDFI allows for the visualisation of the weave pattern structure and analysis of the size of the carbon fibre bundle in three dimensions, even if the individual fibres cannot be separated or the absorption contrast between the carbon fibres and the epoxy matrix is very low.
AB - X-ray scatter dark field imaging (SDFI) using a Talbot-Lau grating interferometer has recently attracted growing interest for the non-destructive testing and evaluation of light materials. In this work, we developed the method further for the characterisation of the laminate structure of carbon fibre reinforced polymers. In particular, we used the anisotropic properties of the small angle scattering signal to image the fibre bundles running in different directions independently with excellent contrast. The results obtained for four different woven carbon fibre reinforced polymer samples were compared to high resolution X-ray computed tomography results. We found that SDFI allows for the visualisation of the weave pattern structure and analysis of the size of the carbon fibre bundle in three dimensions, even if the individual fibres cannot be separated or the absorption contrast between the carbon fibres and the epoxy matrix is very low.
KW - Fibre-reinforced Polymers
KW - X-ray grating interferometer
KW - X-ray phase contrast imaging
UR - http://www.scopus.com/inward/record.url?scp=84878236755&partnerID=8YFLogxK
U2 - 10.1016/j.ndteint.2013.04.012
DO - 10.1016/j.ndteint.2013.04.012
M3 - Article
SN - 0963-8695
VL - 58
SP - 64
EP - 71
JO - NDT & E INTERNATIONAL
JF - NDT & E INTERNATIONAL
ER -