Abstract
The influence of thermal stress on the temperature sensitivity of fiber Bragg grating-glass fiber reinforce polymer (FBGGFRP) bars is studied by three methods, namely, direct experimental calibration method, stress analysis (finite element analysis) method and the method of apparent temperature sensitivity coefficient. In comparison with the other two methods, fewer parameters are required and the calculation is simple in the method of apparent temperature sensitivity coefficient, while the analytical error is limited within 2%. It is concluded that the results of the method of apparent temperature sensitivity coefficient could be good reference for engineering applications.
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This work has been supported by the National Natural Science Foundation of China (No.10902073), the Science Foundation of Construction Ministry (No.2010-K2-21) and the Shenyang City Science Foundation of China (No.1081271-9-00).
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Sun, L., Zhao, J. & Liang, Dz. Influence of thermal stress on temperature sensitivity of FBG-GFRP bars. Optoelectron. Lett. 7, 269–272 (2011). https://doi.org/10.1007/s11801-011-9226-8
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DOI: https://doi.org/10.1007/s11801-011-9226-8