title: Proof of concept of impact detection in composites using fiber bragg grating arrays.
abstract: Impact detection in aeronautical structures allows predicting their future reliability and performance. An impact can produce microscopic fissures that could evolve into fractures or even the total collapse of the structure, so it is important to know the location and severity of each impact. For this purpose, optical fibers with Bragg gratings are used to analyze each impact and the vibrations generated by them. In this paper it is proven that optical fibers with Bragg gratings can be used to detect impacts, and also that a high-frequency interrogator is necessary to collect valuable information about the impacts. The use of two interrogators constitutes the main novelty of this paper.
authors.affiliation: Department of Communications Engineering, Faculty of Engineering, University of the Basque Country, Alda Urquijo, s/n. Bilbao 48013, Spain. javier.gomez@ehu.es.
authors.forename: Javier
authors.initials: J
authors.lastname: Gomez
authors.forename: Iagoba
authors.initials: I
authors.lastname: Jorge
authors.forename: Gaizka
authors.initials: G
authors.lastname: Durana
authors.forename: Jon
authors.initials: J
authors.lastname: Arrue
authors.forename: Joseba
authors.initials: J
authors.lastname: Zubia
authors.forename: Gerardo
authors.initials: G
authors.lastname: Aranguren
authors.forename: Ander
authors.initials: A
authors.lastname: Montero
authors.forename: Ion
authors.initials: I
authors.lastname: López
mesh_terms: D000401:Aircraft / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008420:Manufactured Materials / Q000032:analysis*; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013499:Surface Properties; D014159:Transducers
references.citation: Anal Chem. 2008 Jun 15;80(12):4269-83
references.pmid: 18462008