Use of thermography and fibre optics microscopy for the evaluation of railway structures in the Athens Metro in Greece

Moropoulou, A; Avdelidis, NP; Labropoulos, K; Moundoulas, P; Polymenakou, D; Stavrakas, D; Terezakis, P

dc.contributor.author	Moropoulou, A	en
dc.contributor.author	Avdelidis, NP	en
dc.contributor.author	Labropoulos, K	en
dc.contributor.author	Moundoulas, P	en
dc.contributor.author	Polymenakou, D	en
dc.contributor.author	Stavrakas, D	en
dc.contributor.author	Terezakis, P	en
dc.date.accessioned	2014-03-01T02:50:13Z
dc.date.available	2014-03-01T02:50:13Z
dc.date.issued	2005	en
dc.identifier.issn	0277786X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34969
dc.subject	Assessment	en
dc.subject	Fibre Optics Microscopy	en
dc.subject	Microscopic characterisation	en
dc.subject	NDT	en
dc.subject	Thermography	en
dc.subject.other	Crack propagation	en
dc.subject.other	Defects	en
dc.subject.other	Fatigue of materials	en
dc.subject.other	Fiber optics	en
dc.subject.other	Microscopic examination	en
dc.subject.other	Nondestructive examination	en
dc.subject.other	Structural analysis	en
dc.subject.other	Assessment	en
dc.subject.other	Fiber Optics thermography	en
dc.subject.other	Microscopic characterization	en
dc.subject.other	Pulsed thermography	en
dc.subject.other	Thermography (imaging)	en
dc.title	Use of thermography and fibre optics microscopy for the evaluation of railway structures in the Athens Metro in Greece	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1117/12.601085	en
heal.identifier.secondary	http://dx.doi.org/10.1117/12.601085	en
heal.identifier.secondary	48	en
heal.publicationDate	2005	en
heal.abstract	Rolling Contact Fatigue (RCF) is one of the main issues that concern, at least initially, the head of the railway; progressively they can be of very high importance as they can propagate inside the material with the risk of damaging the railway. In this work, two different non-destructive techniques, infrared thermography (IRT) and fibre optics microscopy (FOM), were used in the inspection of railways for the tracing of defects and deterioration signs. In the first instance, two different approaches (dynamic and pulsed thermography) were used, whilst in the case of FOM, microscopic characterisation of the railway heads and classification of the deterioration - damage on the railways according to the UIC (International Union of Railways) code, took place. Results from both techniques are presented and discussed.	en
heal.journalName	Proceedings of SPIE - The International Society for Optical Engineering	en
dc.identifier.doi	10.1117/12.601085	en
dc.identifier.volume	5782	en
dc.identifier.spage	371	en
dc.identifier.epage	378	en