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dc.contributor.authorOlafsson, G.en_NZ
dc.contributor.authorTighe, Rachelen_NZ
dc.contributor.authorDulieu-Barton, J.M.en_NZ
dc.date.accessioned2019-08-26T21:52:52Z
dc.date.available2019-02-01en_NZ
dc.date.available2019-08-26T21:52:52Z
dc.date.issued2019en_NZ
dc.identifier.citationOlafsson, G., Tighe, R., & Dulieu-Barton, J. M. (2019). Improving the probing depth of thermographic inspections of polymer composite materials. Measurement Science and Technology, 30(2). https://doi.org/10.1088/1361-6501/aaed15en
dc.identifier.issn0957-0233en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/12803
dc.description.abstractThe maximum depth for which a defect of a given size can be detected in thermographic inspections is known as the 'probing depth'. For materials such as polymer composites, with low through-thickness thermal diffusivity, inspections are limited to thin materials or near surface inspection. With the aim of improving probing depth, the paper describes how established signal processing techniques are adapted for thermographic inspections. The procedures are implemented for both pulse thermography and pulse phase thermography inspections of laminated composite materials and sandwich structures. It is demonstrated that the adaptation significantly improves the probing depth, identifying defects that could not be identified using existing procedures. The applicability of the new approaches is discussed, paying particular attention to systematic and random errors resulting from equipment setup. Simple and efficient compensation methods to reduce the effect these errors are presented.
dc.format.mimetypeapplication/pdf
dc.language.isoenen_NZ
dc.publisherIOP Publishing LTDen_NZ
dc.rightsThis is an author’s accepted version of an article published in the journal: Measurement Science and Technology. © IOP Publishing LTD.
dc.subjectScience & Technologyen_NZ
dc.subjectTechnologyen_NZ
dc.subjectEngineering, Multidisciplinaryen_NZ
dc.subjectInstruments & Instrumentationen_NZ
dc.subjectEngineeringen_NZ
dc.subjectpulse thermographyen_NZ
dc.subjectpulse phase thermographyen_NZ
dc.subjectcomposite materialsen_NZ
dc.subjectnon-destructive evaluationen_NZ
dc.subjectimage processingen_NZ
dc.subjectPHASE THERMOGRAPHYen_NZ
dc.subjectPULSEen_NZ
dc.titleImproving the probing depth of thermographic inspections of polymer composite materialsen_NZ
dc.typeJournal Article
dc.identifier.doi10.1088/1361-6501/aaed15en_NZ
dc.relation.isPartOfMeasurement Science and Technologyen_NZ
pubs.elements-id230291
pubs.issue2en_NZ
pubs.publication-statusPublisheden_NZ
pubs.volume30en_NZ
dc.identifier.eissn1361-6501en_NZ
uow.identifier.article-noARTN 025601


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