Use of fiber Bragg grating sensors for monitoring delamination damage propagation in glass-fiber reinforced composite structures
Article
Article Title | Use of fiber Bragg grating sensors for monitoring delamination damage propagation in glass-fiber reinforced |
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ERA Journal ID | 210497 |
Article Category | Article |
Authors | Kakei, Ayad (Author) and Epaarachchi, Jayantha A. (Author) |
Journal Title | Frontiers of Optoelectronics |
Journal Citation | 11 (1), pp. 60-68 |
Number of Pages | 9 |
Year | 2018 |
Place of Publication | China |
ISSN | 2095-2759 |
2095-2767 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s12200-018-0761-9 |
Web Address (URL) | https://link.springer.com/article/10.1007%2Fs12200-018-0761-9#enumeration |
Abstract | Embedded fiber Bragg grating (FBG) sensors have been widely used for damage monitoring of fiber composite structures for a few decades. However, many remaining engineering challenges have delayed FBG based in situ structural health monitoring (SHM) systems. One of the major problem associated with FBG based SHM system is the unavailability of reliable data processing algorithms. The present work details a study which has been undertaken for identification of delamination crack propagation in fiber reinforced polymer (FRP) composite plate under uniaxial loading. The strain measured by embedded FBG sensors closer to the crack tip was used to qualitatively and quantitatively analyse delamination damage propagation using recently proposed elasto-plastic model. Strain energy release rate was calculated and compared with the model prediction. The study has concluded that the delamination crack propagation in a FRP composite can be monitored successfully using an integral approach of FBG sensors measurements and the predictions of proposed elasto-plastic model. |
Keywords | fiber Bragg grating (FBG) sensors; composite; damage modelling; fracture energy |
ANZSRC Field of Research 2020 | 401705. Microelectromechanical systems (MEMS) |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Future Materials |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4qx2/use-of-fiber-bragg-grating-sensors-for-monitoring-delamination-damage-propagation-in-glass-fiber-reinforced-composite-structures
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