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Proceedings Paper

Distributed strain and load monitoring of 6 m composite wing structure by FBG arrays and long-length FBGs
Author(s): Hideaki Murayama; Kazuki Tachibana; Yoshiyasu Hirano; Hirotaka Igawa; Kazuro Kageyama; Kiyoshi Uzawa; Toshiya Nakamura
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Paper Abstract

We equipped a composite wing structure fiber Bragg grating (FBG) arrays including 246 FBGs with 10 mm gauge length, eight and six long-length FBGs with 300 mm and 500 mm, respectively. The length of the wing was 6 m and it was made of carbon fiber reinforced plastics (CFRP). The sensing system based on optical frequency domain reflectometry (OFDR) was used in a series of load tests. The measured results by FBG arrays showed the overall deformation of the wing and good agreement with analysis results. Additionally, strain distributions of stress concentration zones were successfully measured by long-length FBGs.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212D (17 October 2012); doi: 10.1117/12.970292
Show Author Affiliations
Hideaki Murayama, The Univ. of Tokyo (Japan)
Kazuki Tachibana, The Univ. of Tokyo (Japan)
Yoshiyasu Hirano, Japan Aerospace Exploration Agency (Japan)
Hirotaka Igawa, Japan Aerospace Exploration Agency (Japan)
Kazuro Kageyama, The Univ. of Tokyo (Japan)
Kiyoshi Uzawa, The Univ. of Tokyo (Japan)
Toshiya Nakamura, Japan Aerospace Exploration Agency (Japan)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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