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dc.contributor.authorArmitage, Peter R.
dc.contributor.authorWright, C. David
dc.date.accessioned2014-04-23T15:18:37Z
dc.date.issued2013
dc.description.abstractA multi-functional non-linear ultrasonic testing approach is presented for in situ and ex-situ detection of a variety of defects (e.g. micro-cracking, delamination and disbonding) induced by various damage mechanisms (stress, impact, heat) in CFRP materials and structures. Such multi-functionality is provided via programmable and re-configurable instrumentation that incorporates a wide range of non-linear ultrasonic testing regimes, including harmonic and overtone generation, inter-modulation product generation, resonant frequency shift and pulse-inversion techniques. The capabilities of this multi-functional approach to defect detection are demonstrated by examining CFRP samples subjected to various forms of damage, specifically stress, impact and heat induced damage. We show that the multi-functional non-linear approach is well-suited to the detection of such forms of damage and that the pulse-inversion technique, largely ‘ignored’ in the CFRP literature, potentially provides a powerful, but as yet un-tapped, simple and effective route to the defect and damage detection.en_GB
dc.identifier.citationVol. 87, pp. 149 - 156en_GB
dc.identifier.doi10.1016/j.compscitech.2013.07.014
dc.identifier.urihttp://hdl.handle.net/10871/14769
dc.language.isoenen_GB
dc.publisherElsevieren_GB
dc.relation.urlhttp://dx.doi.org/10.1016/j.compscitech.2013.07.014en_GB
dc.subjectCFRPen_GB
dc.subjectDefectsen_GB
dc.subjectNon-linear behaviouren_GB
dc.subjectUltrasonicsen_GB
dc.subjectNon-destructive testingen_GB
dc.titleDesign, development and testing of multi-functional non-linear ultrasonic instrumentation for the detection of defects and damage in CFRP materials and structuresen_GB
dc.typeArticleen_GB
dc.date.available2014-04-23T15:18:37Z
dc.identifier.issn0266-3538
dc.descriptionCopyright © 2013 Elsevier. NOTICE: this is the author’s version of a work that was accepted for publication in Composites Science and Technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composites Science and Technology Vol. 87 (2013), DOI: 10.1016/j.compscitech.2013.07.014en_GB
dc.identifier.journalComposites Science and Technologyen_GB


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