Detection and quantification of discontinuities in building materials using transient thermal NDT techniques: Modeling and experimental work

Avdelidis, NP; Moropoulou, A; Stavrakas, D

dc.contributor.author	Avdelidis, NP	en
dc.contributor.author	Moropoulou, A	en
dc.contributor.author	Stavrakas, D	en
dc.date.accessioned	2014-03-01T01:23:55Z
dc.date.available	2014-03-01T01:23:55Z
dc.date.issued	2006	en
dc.identifier.issn	0025-5327	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17145
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33745364040&partnerID=40&md5=92289c6455dca8fe021c60845b00ac26	en
dc.subject	Discontinuities	en
dc.subject	Marble	en
dc.subject	Nondestructive	en
dc.subject	Stone	en
dc.subject	Thermal transient	en
dc.subject	Thermography	en
dc.subject.classification	Materials Science, Characterization & Testing	en
dc.subject.other	Infrared radiation	en
dc.subject.other	Marble	en
dc.subject.other	Mathematical models	en
dc.subject.other	Nondestructive examination	en
dc.subject.other	Thermal effects	en
dc.subject.other	Thermography (temperature measurement)	en
dc.subject.other	Discontinuities	en
dc.subject.other	Nondestructive	en
dc.subject.other	Stones	en
dc.subject.other	Thermal transient	en
dc.subject.other	Building materials	en
dc.title	Detection and quantification of discontinuities in building materials using transient thermal NDT techniques: Modeling and experimental work	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	In this work, active infrared thermography was employed in the investigation of various building materials. Different types of building materials were assessed: three types of porous stone (from Rhodes, Cyprus and Rethymno-Crete) and one type of marble (Dionysus). The investigated samples contained self-induced discontinuities of known dimensions and depths. During the investigation, the specimens were heated externally (thermal excitation) and thermograms were recorded continuously at the transient phase. Mathematical thermal modeling enabling the modeling of the investigated subsurface discontinuities, using 3D software, was also implemented. Then, quantification analysis (that is, temperature versus time plots, as well as thermal contrast curves) from the experimental tests, as well as from the use of thermal modeling runs took place, indicating the thermal behavior of building materials containing such discontinuities. Keywords: thermography, thermal transient, nondestructive, discontinuities, stone, marble.	en
heal.publisher	AMER SOC NONDESTRUCTIVE TEST	en
heal.journalName	Materials Evaluation	en
dc.identifier.isi	ISI:000237673900007	en
dc.identifier.volume	64	en
dc.identifier.issue	5	en
dc.identifier.spage	489	en
dc.identifier.epage	491	en