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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2012, Vol. 13 Issue (7): 538-545    DOI: 10.1631/jzus.A1100336
Aerospace Engineering     
Strain transfer of surface-bonded fiber Bragg grating sensors for airship envelope structural health monitoring
Hai-tao Zhao, Quan-bao Wang, Ye Qiu, Ji-an Chen, Yue-ying Wang, Zhen-min Fan
School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China
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Abstract  This paper deals with an improved bonding approach of surface-bonded fiber Bragg grating (FBG) sensors for airship envelope structural health monitoring (SHM) under the strain transfer theory. A theoretical formula is derived from the proposed model to predict the strain transfer relationship between the airship envelope and fiber core. Then theoretical predictions are validated by numerical analysis using the finite element method (FEM). Finally, on the basis of the theoretical approach and numerical validation, parameters that influence the strain transfer rate from the airship envelope to fiber core and the ratio of effective sensing length are analyzed, and some meaningful conclusions are provided.

Key words： Airship envelope      Fiber Bragg grating (FBG)      Surface-bonded      Strain transfer      Structural health monitoring (SHM)     
Received: 10 December 2011      Published: 03 July 2012
CLC:  V27  
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Hai-tao Zhao
Ji-an Chen
Quan-bao Wang
Ye Qiu
Yue-ying Wang
Zhen-min Fan
Cite this article:

Hai-tao Zhao, Quan-bao Wang, Ye Qiu, Ji-an Chen, Yue-ying Wang, Zhen-min Fan. Strain transfer of surface-bonded fiber Bragg grating sensors for airship envelope structural health monitoring. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2012, 13(7): 538-545.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A1100336     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2012/V13/I7/538

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