Study on vibration performance and damaging detection of composite materials based on FBG

Fang Dong Zhu; Sheng Zhuo Zhang; Peng Fan; Yuan Jun Ni; Fei Yong Lu

doi:10.1117/12.2295675

10 January 2018 Study on vibration performance and damaging detection of composite materials based on FBG

Fang Dong Zhu, Sheng Zhuo Zhang, Peng Fan, Yuan Jun Ni, Fei Yong Lu

Proceedings Volume 10618, 2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications; 106180V (2018) https://doi.org/10.1117/12.2295675
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

In this paper, the vibration performance and damage types of carbon fiber composite materials were investigated based on FBG sensing technology. The free end of a carbon fiber composite cantilever beam was hit by a falling ball to generate a resonance in the cantilever. The resonance frequency was measured and the damping loss factor was calculated based on which the vibration characteristic of the carbon fiber composite was analyzed. After that, a man-made damage (a small hole) was introduced into the cantilever and the resonance frequency was measured again. The result was compared with the frequency without damage, so that the damage type could be judged. The result provides a reference to the study of the vibration performance and damage monitoring of carbon fiber composite materials.

Citation Download Citation

Fang Dong Zhu, Sheng Zhuo Zhang, Peng Fan, Yuan Jun Ni, and Fei Yong Lu "Study on vibration performance and damaging detection of composite materials based on FBG", Proc. SPIE 10618, 2017 International Conference on Optical Instruments and Technology: Advanced Optical Sensors and Applications, 106180V (10 January 2018); https://doi.org/10.1117/12.2295675

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