English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/163364
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Demonstration and methodology of structural monitoring of stringer runs out composite areas by embedded optical fiber sensors and connectors integrated during production in a composite plant

AutorGiraldo, C. M.; Zúñiga Sagredo, J.; Sánchez-Gómez, José; Corredera, Pedro
Palabras claveStructural health monitoring in composite structures
Embedded optical fiber sensors
Ingress-egress optical fiber
Fecha de publicación21-jul-2017
EditorMolecular Diversity Preservation International
CitaciónSensors 17(7): 1683.(2017)
ResumenEmbedding optical fibers sensors into composite structures for Structural Health Monitoring purposes is not just one of the most attractive solutions contributing to smart structures, but also the optimum integration approach that insures maximum protection and integrity of the fibers. Nevertheless this intended integration level still remains an industrial challenge since today there is no mature integration process in composite plants matching all necessary requirements. This article describes the process developed to integrate optical fiber sensors in the Production cycle of a test specimen. The sensors, Bragg gratings, were integrated into the laminate during automatic tape lay-up and also by a secondary bonding process, both in the Airbus Composite Plant. The test specimen, completely representative of the root joint of the lower wing cover of a real aircraft, is comprised of a structural skin panel with the associated stringer run out. The ingress-egress was achieved through the precise design and integration of miniaturized optical connectors compatible with the manufacturing conditions and operational test requirements. After production, the specimen was trimmed, assembled and bolted to metallic plates to represent the real triform and buttstrap, and eventually installed into the structural test rig. The interrogation of the sensors proves the effectiveness of the integration process; the analysis of the strain results demonstrate the good correlation between fiber sensors and electrical gauges in those locations where they are installed nearby, and the curvature and load transfer analysis in the bolted stringer run out area enable demonstration of the consistency of the fiber sensors measurements. In conclusion, this work presents strong evidence of the performance of embedded optical sensors for structural health monitoring purposes, where in addition and most importantly, the fibers were integrated in a real production environment and the ingress-egress issue was solved by the design and integration of miniaturized connectors compatible with the manufacturing and structural test phases.
Descripción22 pags., 28 figs., 6 tabs. -- Open Access funded by Creative Commons Atribution Licence 4.0
Versión del editorhttp://doi.org/10.3390/s17071683
URIhttp://hdl.handle.net/10261/163364
Identificadoresdoi: 10.3390/s17071683
issn: 1424-8220
Aparece en las colecciones: (CFMAC-IO) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Demostration.pdf8,68 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.