title: Pulsed micro-laser line thermography on submillimeter porosity in carbon fiber reinforced polymer composites: experimental and numerical analyses for the capability of detection.
abstract: In this article, pulsed micro-laser line thermography (pulsed micro-LLT) was used to detect the submillimeter porosities in a 3D preformed carbon fiber reinforced polymer composite specimen. X-ray microcomputed tomography was used to verify the thermographic results. Then, finite element analysis was performed on the corresponding models on the basis of the experimental results. The same infrared image processing techniques were used for the experimental and simulation results for comparative purposes. Finally, a comparison of experimental and simulation postprocessing results was conducted. In addition, an analysis of probability of detection was performed to evaluate the detection capability of pulsed micro-LLT on submillimeter porosity.
authors.forename: Hai
authors.initials: H
authors.lastname: Zhang
authors.forename: Henrique
authors.initials: H
authors.lastname: Fernandes
authors.forename: Frank Billy
authors.initials: FB
authors.lastname: Djupkep Dizeu
authors.forename: Ulf
authors.initials: U
authors.lastname: Hassler
authors.forename: Julien
authors.initials: J
authors.lastname: Fleuret
authors.forename: Marc
authors.initials: M
authors.lastname: Genest
authors.forename: Clemente
authors.initials: C
authors.lastname: Ibarra-Castanedo
authors.forename: François
authors.initials: F
authors.lastname: Robitaille
authors.forename: Simon
authors.initials: S
authors.lastname: Joncas
authors.forename: Xavier
authors.initials: X
authors.lastname: Maldague