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Proceedings Paper

Application of small-diameter FBG sensors for detection of damages in composites
Author(s): Yoji Okabe; Tadahito Mizutani; Shigeki Yashiro; Nobuo Takeda
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Paper Abstract

Small-diameter fiber Bragg grating (FBG) sensors have been developed by Hitachi Cable Ltd. and the authors. Since the outside diameter of polyimide coating is 52 micrometers , embedding of the sensors into carbon fiber reinforced plastic (CFRP) composites prepregs of 125 micrometers in thickness does not deteriorate the mechanical properties of the composite laminates. In this research, the small-diameter FBG sensor was applied for the detection of transverse cracks in CFRP composites. The FBG sensor was embedded in 0 degree(s) ply of a CFRP cross-ply laminate.

Paper Details

Date Published: 6 August 2001
PDF: 11 pages
Proc. SPIE 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (6 August 2001); doi: 10.1117/12.435532
Show Author Affiliations
Yoji Okabe, Univ. of Tokyo (Japan)
Tadahito Mizutani, Univ. of Tokyo (Japan)
Shigeki Yashiro, Univ. of Tokyo (Japan)
Nobuo Takeda, Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 4328:
Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
Eric Udd; Daniele Inaudi, Editor(s)

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