Cure Monitoring of Composite Laminates Using Fiber Optic Sensors

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In this paper, we present the simultaneous measurement of the strain and temperature during cures of various composite laminates using fiber Bragg grating/extrinsic Fabry-Perot interferometric (FBG/EFPI) hybrid sensors. The characteristic matrix of the hybrid sensor is derived analytically. For the fabrication of the three types of graphite/epoxy composite laminate, two FBG/EFPI hybrid sensors were embedded in each composite laminate in two mutually perpendicular directions. We performed the real-time measurement of fabrication strains and temperatures at two points within the composite laminates during the curing process in an autoclave. Through these experiments, FBG/EFPI sensors are proven to be a good choice for efficient smart monitoring of composite structures.
Publisher
Institute of Physics
Issue Date
2002
Citation

Smart Materials and Structures, Vol.11, No.2, pp.279-287

ISSN
0964-1726
URI
http://hdl.handle.net/10203/22869
Appears in Collection
AE-Journal Papers(저널논문)

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