Surface and subsurface defects detection in impacted composite materials made by natural fibers, using nondestructive testing methods

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dc.contributor.authorSfarra, Stefano-
dc.contributor.authorAvdelidis, Nicolas P.-
dc.contributor.authorIbarra Castanedo, Clemente-
dc.contributor.authorSantulli, Carlo-
dc.contributor.authorTheodorakeas, Panagiotis-
dc.contributor.authorBendada, Abdelhakim-
dc.contributor.authorPaoletti, Domenica-
dc.contributor.authorKoui, Maria-
dc.contributor.authorMaldague, X.-
dc.description.abstractIn the present study, infrared vision and optical nondestructive testing (NDT) techniques were applied for the evaluation of emerging defects after artificially impacting composite materials reinforced with natural fibers. The samples were manufactured using wool felts and jute fibers inserted in an epoxy matrix. Infrared vision was applied by means of pulsed thermography (PT) and square pulsed thermography (SPT), evaluating two different thermal stimulation procedures; while the algorithms referred to as principal component thermography (PCT) and pulsed phase thermography (PPT) were used in order to enhance the information retrieval from the respective thermographic inspections. For comparison purposes, near-infrared reflectography (NIRR) and transmittography (NIRT), as well as laser speckle imaging techniques were also included. Additionally, ultraviolet (UV) imaging technique was used on the laminates both as complementary approach and as reference for future inspections. Two particular zones highlighted by the latter technique were characterized using an XRF spectrophotometer revealing a reverse concentration of the Al, Si and Cl elements. The results produced from the above comparative study confirmed the synergy of the applied techniques and further indicated that the methodology followed in the present research work can be considered as an innovative approach for the characterization of eco-friendly laminates after an impact loading.fr_CA
dc.publisherScientific & Academic Publishingfr_CA
dc.subjectInfrared visionfr_CA
dc.subjectOptical NDT techniquesfr_CA
dc.subjectComposite materialsfr_CA
dc.subjectEmerging defectsfr_CA
dc.subjectNatural fiberfr_CA
dc.titleSurface and subsurface defects detection in impacted composite materials made by natural fibers, using nondestructive testing methodsfr_CA
dc.typeCOAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherche-
dcterms.bibliographicCitationInternational Journal of Composite Materials, Vol. 4 (5A), 1-9 (2014)fr_CA
dc.audienceProfesseurs (Enseignement supérieur)fr_CA
dc.subject.rvmComposites -- Contrôle non destructiffr_CA
dc.subject.rvmFibres naturellesfr_CA
dc.subject.rvmContrôle non destructif par thermographie infrarougefr_CA
dc.subject.rvmMesures optiquesfr_CA
dc.subject.rvmComposites -- Défautsfr_CA
rioxxterms.versionAccepted Manuscriptfr_CA
rioxxterms.project.funder_nameNatural Sciences and Engineering Research Council of Canadafr_CA
bul.rights.periodeEmbargo0 moisfr_CA
Collection:Articles publiés dans des revues avec comité de lecture

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