Selection of optical fibers paths and sensor locations for monitoring the integrity of composite patching

Tsamasphyros, GJ; Kanderakis, GN; Furnarakis, NK; Marioli-Riga, ZP; Chemama, R; Bartolo, R

dc.contributor.author	Tsamasphyros, GJ	en
dc.contributor.author	Kanderakis, GN	en
dc.contributor.author	Furnarakis, NK	en
dc.contributor.author	Marioli-Riga, ZP	en
dc.contributor.author	Chemama, R	en
dc.contributor.author	Bartolo, R	en
dc.date.accessioned	2014-03-01T01:19:31Z
dc.date.available	2014-03-01T01:19:31Z
dc.date.issued	2003	en
dc.identifier.issn	0929-189X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15547
dc.subject	Bragg Grating	en
dc.subject	Critical Parameter	en
dc.subject	Finite Element Analysis	en
dc.subject	Optical Fiber	en
dc.subject	Structural Integrity	en
dc.subject	Fiber Optic	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	Composite materials	en
dc.subject.other	Crack propagation	en
dc.subject.other	Fiber Bragg gratings	en
dc.subject.other	Finite element method	en
dc.subject.other	Optical fibers	en
dc.subject.other	Optical sensors	en
dc.subject.other	Bragg grating sensors	en
dc.subject.other	Composite patch reinforced structures	en
dc.subject.other	Crack tip	en
dc.subject.other	Optical fiber paths	en
dc.subject.other	Fiber optic networks	en
dc.title	Selection of optical fibers paths and sensor locations for monitoring the integrity of composite patching	en
heal.type	journalArticle	en
heal.identifier.primary	10.1023/A:1025791424307	en
heal.identifier.secondary	http://dx.doi.org/10.1023/A:1025791424307	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	In order to select appropriate optical fiber paths and locations for Bragg Grating sensors, the research group has studied a classically cracked metallic structure repaired with a 'smart' bonded composite patch using finite element analysis. The patch was bonded over a cracked aluminum plate by means of a thin adhesive layer. The primary loading axis of the metal was assumed parallel to the direction of the optical fibers used. A variety of optical fiber paths and sensor positions was considered, along with their ability to measure the developed strain field and to trace the position of the crack tip. It was concluded that a fiber optics network is indeed capable of tracing effectively the critical parameters required for the monitoring of structural integrity of the composite patch-reinforced structures (i.e. strains developed at the patch and at the tip of the crack). It was found that at least two Bragg Grating sensors should be used at each side of the crack per optical fiber, in order to enable adequate monitoring of the strain field and the position of the crack tip. Different locations should be chosen according to the configuration of the patch (one or two-sided).	en
heal.publisher	KLUWER ACADEMIC PUBL	en
heal.journalName	Applied Composite Materials	en
dc.identifier.doi	10.1023/A:1025791424307	en
dc.identifier.isi	ISI:000185406000001	en
dc.identifier.volume	10	en
dc.identifier.issue	6	en
dc.identifier.spage	331	en
dc.identifier.epage	338	en