Open AccessMonitoring the failure forms of a composite laminate system by using panda polarization maintaining fiber Bragg gratings
Author(s) -
Xiaoqiang Zhang,
Ruishan Chen,
Anting Wang,
Yong Xu,
Yong Jiang,
Hai Ming,
Weisheng Zhao
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.017571
Subject(s) - cls upper limits , fiber bragg grating , materials science , optics , wavelength , polarization (electrochemistry) , composite number , principal axis theorem , optical fiber , fiber optic sensor , fiber , optoelectronics , composite material , physics , medicine , chemistry , geometry , mathematics , optometry
In this paper, the property of panda polarization maintaining fiber Bragg gratings (PPM-FBGs) embedded in a composite laminate system (CLS) under a transversal force from 1 × 10 5 Pa to 5 × 10 5 Pa is explored. Both the wavelengths shift and the rotation angle of the principal axes of the PPM-FBGs are surveyed theoretically. We investigate the corresponding relation between the direction of external force and the rotation angle of principal axes of the PPM-FBGs and prove that the magnitude and direction of the strain distribution in the CLS can be monitored simultaneously, which can realize the detection of interlaminar damage of the CLS. We find that the strain, which corresponds to the shift of wavelengths of the PPM-FBGs, has a different angular dependence, and therefore the potential failure forms of the CLS can be differentiated.