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Proceedings Paper

Alternating strain response of fibre Bragg grating sensors embedded into carbon fibre composites for wind blade health monitoring
Author(s): Pingyu Zhu; Jiang Wu; Mengjiao Huang; Xuebin Feng; Hang Deng; Hongjie Xie; Marcelo A. Soto
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Paper Abstract

In this paper, we propose the use of a series of fibre Bragg grating (FBG) sensors encapsulated in dedicated packaging made of carbon fibre reinforced polymers (CFRP) for monitoring the structural health of wind turbine blades. The manufactured CFRP packages are experimentally tested in a real-field fatigue test carried out on a 56.85 m-long composite wind blade over 16 days, in which alternating loads (i.e. tensile and compressive strain) are applied to the entire wind blade. Experimental results indicate the CFRP-packaged FBG sensors provide dynamic strain measurements with high precision and with no degradation over time, as shown to happen with conventional strain gauges.

Paper Details

Date Published: 28 August 2019
PDF: 4 pages
Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111990G (28 August 2019); doi: 10.1117/12.2540047
Show Author Affiliations
Pingyu Zhu, Guangzhou Univ. (China)
Jiang Wu, Guangzhou Univ. (China)
Mengjiao Huang, Guangzhou Univ. (China)
Xuebin Feng, Zhuzhou Times New Material Technology Co., Ltd. (China)
Hang Deng, Zhuzhou Times New Material Technology Co., Ltd. (China)
Hongjie Xie, Zhuzhou Times New Material Technology Co., Ltd. (China)
Marcelo A. Soto, Guangzhou Univ. (China)
Univ. Técnica Federico Santa María (Chile)


Published in SPIE Proceedings Vol. 11199:
Seventh European Workshop on Optical Fibre Sensors
Kyriacos Kalli; Sinead O. O'Keeffe; Gilberto Brambilla, Editor(s)

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