Active thermography in the assessment of repaired aircraft panels

Moropoulou, A; Avdelidis, NP

dc.contributor.author	Moropoulou, A	en
dc.contributor.author	Avdelidis, NP	en
dc.date.accessioned	2014-03-01T01:17:25Z
dc.date.available	2014-03-01T01:17:25Z
dc.date.issued	2002	en
dc.identifier.issn	1354-2575	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14523
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0036496666&partnerID=40&md5=b5fa970b90bac739c04269439b85b0bf	en
dc.subject	Active approach	en
dc.subject	Aircraft components	en
dc.subject	Aluminium panels	en
dc.subject	Composite patching	en
dc.subject	Defects	en
dc.subject	Thermographic image analysis	en
dc.subject	Thermography	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.classification	Materials Science, Characterization & Testing	en
dc.subject.other	Aircraft materials	en
dc.subject.other	Airframes	en
dc.subject.other	Aluminum	en
dc.subject.other	Composite materials	en
dc.subject.other	Defects	en
dc.subject.other	Image analysis	en
dc.subject.other	Repair	en
dc.subject.other	Thermography (imaging)	en
dc.subject.other	Aircraft components	en
dc.subject.other	Aircraft panels	en
dc.subject.other	Aluminum panels	en
dc.subject.other	Composite patches	en
dc.subject.other	Histograms	en
dc.subject.other	Thermographic image analysis	en
dc.subject.other	Nondestructive examination	en
dc.title	Active thermography in the assessment of repaired aircraft panels	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	The main purpose of this research work was to determine the limits for the detection of defects on aircraft components using thermographic techniques. Several notched (cracked) aluminium panels, repaired with defective or adequate composite patches, were assessed in the laboratory by active thermography with a view to detecting and identifying such imperfections. The patches applied on the aircraft panels were constructed of numerous plies of either boron epoxy or carbon epoxy composite materials. For the infrared thermographic investigation, the dual-wavelength active approach (3-5.4 mum and 8-12 mum) was employed using either an external heating or cooling source. Moreover; thermographic image analysis, using histograms, it-as applied on a choice of thermal images for a two-dimensional measurement of the located deficiencies. The results obtained from this work demonstrate that thermography can be considered as a powerful non-destructive tool for the assessment of defects and patches on aircraft materials.	en
heal.publisher	BRITISH INST NON-DESTRUCTIVE TESTING	en
heal.journalName	Insight: Non-Destructive Testing and Condition Monitoring	en
dc.identifier.isi	ISI:000174327800012	en
dc.identifier.volume	44	en
dc.identifier.issue	3	en
dc.identifier.spage	145	en
dc.identifier.epage	149	en