Transient thermal NDT & e of defects in building materials

Avdelidis, NP; Stavrakas, D; Moropoulou, A

dc.contributor.author	Avdelidis, NP	en
dc.contributor.author	Stavrakas, D	en
dc.contributor.author	Moropoulou, A	en
dc.date.accessioned	2014-03-01T02:50:55Z
dc.date.available	2014-03-01T02:50:55Z
dc.date.issued	2006	en
dc.identifier.issn	0277786X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35210
dc.subject	Defects	en
dc.subject	Marble	en
dc.subject	Non-destructive	en
dc.subject	Stone	en
dc.subject	Thermal transient	en
dc.subject	Thermography	en
dc.subject.other	Computer simulation	en
dc.subject.other	Defects	en
dc.subject.other	Marble	en
dc.subject.other	Mathematical models	en
dc.subject.other	Nondestructive examination	en
dc.subject.other	Thermography (imaging)	en
dc.subject.other	Infrared thermography (IRT)	en
dc.subject.other	Stone	en
dc.subject.other	Thermal transient	en
dc.subject.other	Thermograms	en
dc.subject.other	Structural analysis	en
dc.title	Transient thermal NDT & e of defects in building materials	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1117/12.665415	en
heal.identifier.secondary	http://dx.doi.org/10.1117/12.665415	en
heal.identifier.secondary	620516	en
heal.publicationDate	2006	en
heal.abstract	In this work, infrared thermography (IRT) was used for the investigation of structural materials using the active approach. Four types of building materials were examined; three types of porous stone (from Rhodes, Cyprus, Rethymno - Crete) and one type of marble (Dionysus). Specimens containing self-induced defects of known dimensions and depths were studied. The samples were heated externally (thermal excitation) and thermograms were recorded continuously at the transient phase. Mathematical - thermal modelling enabling the modelling of the investigated subsurface defects, using the thermocalc 3-D software, was also implemented. Then, quantification analysis (i.e. temperature - time plots, as well as thermal contrast curves) from the experimental tests, as well as from the use of thermal modelling runs took place, indicating the thermal behaviour of building materials containing such defects. The results of this research show that IRT can be used for the detection and quantification of defects in structural materials.	en
heal.journalName	Proceedings of SPIE - The International Society for Optical Engineering	en
dc.identifier.doi	10.1117/12.665415	en
dc.identifier.volume	6205	en