Finite Element Analysis of Thermal Stress on FBG-GFRP

Li Sun; Hong Hai; De Zhi Liang; Jian Zhao; Na Zhang

doi:10.4028/www.scientific.net/AMR.243-249.1253

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 243-249Finite Element Analysis of Thermal Stress on...

Finite Element Analysis of Thermal Stress on FBG-GFRP

Abstract:

This paper investigates the influence of thermal stress on FBG embedded in GFRP bar by the finite element analysis and the calibration test. The temperature sensitivity coefficient of smart FBG-GFRP analyzed by FEM is 17.42 pm/°C, which is about 1.65-fold of bare FBG’s namely 10.53 pm/°C. And the coefficient got by calibration test is 17.6 pm/°C. The result shows that the influence of thermal on FBG is very big, after encapsulated and before used in structure, the temperature sensitivity coefficient of FBG must be calibrated.

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Periodical:

Advanced Materials Research (Volumes 243-249)

Pages:

1253-1256

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.243-249.1253

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Online since:

May 2011

Authors:

Li Sun, Hong Hai, De Zhi Liang, Jian Zhao, Na Zhang

Keywords:

Fiber Bragg Grating (FBG), Finite Element Analysis (FEA), Temperature Stress, Temperature-Sensitivity

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References

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