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Proceedings Paper

Monitoring of reinforced composites processed by microwave radiation using fiber-Bragg gratings
Author(s): David Barrera; Inma Roig; Salvador Sales; Rudolf Emmerich
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Paper Abstract

The use of microwave radiation for curing carbon-fiber reinforced polymer materials (CFRP) can solve the nonhomogeneous heating problems when using conventional techniques based on the use of catalysts and can reduce the processing times. Optical fiber sensors have well-known advantages for Fiber Reinforced Composites (FRC) monitoring. In this paper fiber Bragg gratings (FBGs) are used for online monitoring of the residual stress and distortions produced during the microwave curing process. The CFRP samples are composed by layers of unidirectional carbon fibers and epoxy resin. The results show a very different behavior between the direction of carbon fibers and the perpendicular direction. Results are compared with the conventional processing technique.

Paper Details

Date Published: 15 May 2014
PDF: 6 pages
Proc. SPIE 9141, Optical Sensing and Detection III, 91410Z (15 May 2014); doi: 10.1117/12.2052120
Show Author Affiliations
David Barrera, Univ. Politècnica de València (Spain)
Inma Roig, AIMPLAS (Spain)
Salvador Sales, Univ. Politècnica de València (Spain)
Rudolf Emmerich, Fraunhofer-Institut für Chemische Technologie (Germany)

Published in SPIE Proceedings Vol. 9141:
Optical Sensing and Detection III
Francis Berghmans; Anna G. Mignani; Piet De Moor, Editor(s)

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