Free-edge delamination location and growth montoring with an embedded distributed fiber optic network

Díaz-Maroto, Patricia; Fernández López, Antonio; Larrañaga, Beatriz y Güemes Gordo, Jesús Alfredo (2016). Free-edge delamination location and growth montoring with an embedded distributed fiber optic network. En: "8th European Workshop On Structural Health Monitoring", 5-8 Jul 2016, Bilbao. ISBN 978-1-5108-2793-6.

Descripción

Título: Free-edge delamination location and growth montoring with an embedded distributed fiber optic network
Autor/es:
  • Díaz-Maroto, Patricia
  • Fernández López, Antonio
  • Larrañaga, Beatriz
  • Güemes Gordo, Jesús Alfredo
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 8th European Workshop On Structural Health Monitoring
Fechas del Evento: 5-8 Jul 2016
Lugar del Evento: Bilbao
Título del Libro: 8th European Workshop On Structural Health Monitoring
Fecha: 2016
ISBN: 978-1-5108-2793-6
Materias:
Palabras Clave Informales: Fiber Optic, Distributed sensing, Aerospace SHM Applications, Delamination, Rayleigh scatter, OBR.
Escuela: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Departamento: Materiales y Producción Aeroespacial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Delamination is the most characteristic damage found in composite materials. Low velocity impacts may lead to delamination onset, likely to occur during manufacturing processes or in operating service life.Furthermore, areas near the free-edge of the structures,as well as ply drop off and integrated reinforcements have demonstrate a high vulnerability to impacts. This paper focuses on the delamination detection based on an embedded or fixed fiber optic network in a composite laminate. The sensor network uses the Rayleigh scattering through an Optical Backscatter Reflectometer (OBR)that it obtains a continuous strain monitoring on a bare opical fiber. For this purpose, several optical fibers were attached on the structure surface close to the free edge of the specimens in order to identify the first-ply failure and the delamination growth. Experimental results were compared to an ultrasonic C-Scan inspection which present a good agreement with the data of sensor network.

Más información

ID de Registro: 48185
Identificador DC: http://oa.upm.es/48185/
Identificador OAI: oai:oa.upm.es:48185
URL Oficial: http://www.ndt.net/events/EWSHM2016/app/content/Paper/316_FernandezDiaz-Maroto.pdf
Depositado por: Memoria Investigacion
Depositado el: 23 Feb 2018 10:51
Ultima Modificación: 23 Feb 2018 10:51
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