Application of small-diameter FBG sensors for detection of damages in composites

Yoji Okabe; Tadahito Mizutani; Shigeki Yashiro; Nobuo Takeda

doi:10.1117/12.435532

6 August 2001 Application of small-diameter FBG sensors for detection of damages in composites

Yoji Okabe, Tadahito Mizutani, Shigeki Yashiro, Nobuo Takeda

Proceedings Volume 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials; (2001) https://doi.org/10.1117/12.435532
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

Yoji Okabe, Tadahito Mizutani, Shigeki Yashiro, and Nobuo Takeda "Application of small-diameter FBG sensors for detection of damages in composites", Proc. SPIE 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (6 August 2001); https://doi.org/10.1117/12.435532

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