Optical sensing of the fatigue damage state of CFRP under realistic aeronautical load sequences

Zuluaga Ramírez, Pablo; Arconada Sousa, Álvaro; Frövel, Malte; Belenguer, Tomás y Salazar Bloise, Félix José (2015). Optical sensing of the fatigue damage state of CFRP under realistic aeronautical load sequences. "Sensors", v. 15 (n. 3); pp. 5710-5721. ISSN 1424-8220. https://doi.org/10.3390/s150305710.

Descripción

Título: Optical sensing of the fatigue damage state of CFRP under realistic aeronautical load sequences
Autor/es:
  • Zuluaga Ramírez, Pablo
  • Arconada Sousa, Álvaro
  • Frövel, Malte
  • Belenguer, Tomás
  • Salazar Bloise, Félix José
Tipo de Documento: Artículo
Título de Revista/Publicación: Sensors
Fecha: Marzo 2015
Volumen: 15
Materias:
Escuela: E.T.S.I. Minas (UPM) [antigua denominación]
Departamento: Física Aplicada [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

We present an optical sensing methodology to estimate the fatigue damage state of structures made of carbon fiber reinforced polymer (CFRP), by measuring variations on the surface roughness. Variable amplitude loads (VAL), which represent realistic loads during aeronautical missions of fighter aircraft (FALSTAFF) have been applied to coupons until failure. Stiffness degradation and surface roughness variations have been measured during the life of the coupons obtaining a Pearson correlation of 0.75 between both variables. The data were compared with a previous study for Constant Amplitude Load (CAL) obtaining similar results. Conclusions suggest that the surface roughness measured in strategic zones is a useful technique for structural health monitoring of CFRP structures, and that it is independent of the type of load applied. Surface roughness can be measured in the field by optical techniques such as speckle, confocal perfilometers and interferometry, among others.

Más información

ID de Registro: 41476
Identificador DC: http://oa.upm.es/41476/
Identificador OAI: oai:oa.upm.es:41476
Identificador DOI: 10.3390/s150305710
URL Oficial: http://www.mdpi.com/1424-8220/15/3/5710
Depositado por: Memoria Investigacion
Depositado el: 24 Jun 2016 08:52
Ultima Modificación: 24 Jun 2016 08:52
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