Monitoring the hysteresis effects in the strain-stress curve of carbon fiber reinforced laminates by FBG technology

Hongtao Zhang; Masoud Ghandehari; Alexey Sidelev; Ruslan Bazhanski; Pengfei Wang; Jing Xie; Jilin Zou; Engui Lui; David Li; Fang Fang; Hong-Liang Cui; Xingwei Wang

doi:10.1117/12.886077

18 May 2011 Monitoring the hysteresis effects in the strain-stress curve of carbon fiber reinforced laminates by FBG technology

Hongtao Zhang, Masoud Ghandehari, Alexey Sidelev, Ruslan Bazhanski, Pengfei Wang, Jing Xie, Jilin Zou, Engui Lui, David Li, Fang Fang, Hong-Liang Cui, Xingwei Wang

Author Affiliations +

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775387 (2011) https://doi.org/10.1117/12.886077
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

In this paper, we present a study of detecting the hysteresis effect in strain-stress curve of carbon fiber reinforced materials by Fiber Bragg Grating technology. By calculating the dissipative energy density contoured by hysteresis loops, this method can be further applied in detecting the cracks and fatigue of carbon fiber reinforced laminates. In contrast to the traditional sensors, such FBG sensors have numerous merits, such as small size, immunity to Electromagnetic Interference and easy installation into the carbon fiber reinforced laminates. This method can also be extended into monitoring other materials which also exhibit hysteresis effects in their strain-stress curves.

Citation Download Citation

Hongtao Zhang, Masoud Ghandehari, Alexey Sidelev, Ruslan Bazhanski, Pengfei Wang, Jing Xie, Jilin Zou, Engui Lui, David Li, Fang Fang, Hong-Liang Cui, and Xingwei Wang "Monitoring the hysteresis effects in the strain-stress curve of carbon fiber reinforced laminates by FBG technology", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775387 (18 May 2011); https://doi.org/10.1117/12.886077

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