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Memorias de investigación
Artículos en revistas:
Buckling detection of an omega-stiffened aircraft composite panel using distributed fibre optic sensors
Año:2018
Áreas de investigación
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
A novel approach to detect and locate buckling from distributed optical sensors is proposed in this paper by means of a second derivative analysis of the strain measurements. This methodology demonstrates that nonlinear events are prone to significant changes in the full-field strain shape obtained using a dense distributed optical network, whose measurements were processed earlier using a Savitzy-Golay filter. Moreover, these nonlinear events can be identified without needing to know the load step value. A buckling test was conducted in a stiffened composite panel representative of a cockpit fuselage skin stiffened by two omega stiffeners plus two fastened metallic frames. A distributed fibre optic network was bonded to the flat panel side in a crooked configuration. The panel was also instrumented using conventional back-to-back strain gauge rosettes and a high-speed-camera to establish a qualitative comparison with the distributed strain contour map. Through the proposed methodology, the detection and location of the global and local buckling were successfully conducted.
Internacional
Si
JCR del ISI
Si
Título de la revista
Thin-Walled Structures
ISSN
0263-8231
Factor de impacto JCR
2,829
Información de impacto
Datos JCR del año 2016
Volumen
DOI
10.1016/j.tws.2018.08.024
Número de revista
132
Desde la página
375
Hasta la página
284
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Patricia Fernandez Diaz-Maroto (UPM)
  • Autor: Antonio Fernandez Lopez (UPM)
  • Autor: Jaime García Alonso (Airbus Defensa y Espacio)
  • Autor: Manuel Iglesias Vallejo (Airbus Defensa y Espacio)
  • Autor: Jesus Alfredo Guemes Gordo (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Centro o Instituto I+D+i: Instituto Universitario de Microgravedad "Ignacio da Riva"
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