Experimental study on curing and tensile deformation in epoxy resin by fiber Bragg grating

Rong-mei Liu; Lujia Zhu; Qiufeng Li

doi:10.1117/12.2266846

10 February 2017 Experimental study on curing and tensile deformation in epoxy resin by fiber Bragg grating

Rong-mei Liu, Lujia Zhu, Qiufeng Li

Proceedings Volume 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016); 102502N (2017) https://doi.org/10.1117/12.2266846
Event: Fourth International Conference on Optical and Photonics Engineering, 2016, Chengdu, China

Abstract

The curing process of epoxy resin was monitored real-time by using embedded fiber Bragg grating (FBG) sensor. The resin was cured at room temperature 24°C for 24 hours. The curing monitor test showed that the temperature inside the resin went up quickly at the first 70 minutes. Then the temperature increased slowly till 120 minutes. Afterward, the central wavelength decreased which indicated two stage of curing, i.e. temperature reduction and curing shrinkage. Furthermore, the cured resin sample under tensile load was studied. Strain gauges were applied in order to evaluate the FBG sensor. Experimental results showed that difference existed between the mentioned sensors.

Citation Download Citation

Rong-mei Liu, Lujia Zhu, and Qiufeng Li "Experimental study on curing and tensile deformation in epoxy resin by fiber Bragg grating", Proc. SPIE 10250, International Conference on Optical and Photonics Engineering (icOPEN 2016), 102502N (10 February 2017); https://doi.org/10.1117/12.2266846

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