Structural Health Monitoring system of composite beams with surface bonded and embedded Fibre Bragg Grating sensors

Date

2017-01-15

Author

Deǧerliyurt, Boray
Karataş, Cansu
Şahin, Melin
Yaman, Yavuz

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Fibre Bragg Grating (FBG) sensors are frequently being used for Structural Health Monitoring (SHM) of aerospace structures. One of the most important advantages of using FBG sensors is that it is possible to embed them into composites. In this paper, manufacturing methods of composite specimens with embedded FBG sensors are given. To avoid stress concentrations at ingress/egress regions of fibre optic wires, PTFE (Teflon) tubes were used during manufacturing. Moreover, FBG connectors melt at high curing temperatures. Therefore, those connectors were cut and after manufacturing, these connectors were spliced back to the FBG sensors. Embedded FBG’s were then checked and the correct wavelength data were taken. All the sensors were observed as intact and ready for bending tests. Procedure for bending tests is also explained including applied loads, boundary conditions, test setup and the peripheral equipment. Results of bending tests show that the system is an appropriate one for SHM purposes.

Subject Keywords

Composites, Embedded sensor, Experiment, Fibre bragg grating, Manufacturing

URI

https://hdl.handle.net/11511/35120

DOI

https://doi.org/10.4028/www.scientific.net/kem.744.332

Collections

Department of Aerospace Engineering, Conference / Seminar

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Citation Formats

B. Deǧerliyurt, C. Karataş, M. Şahin, and Y. Yaman, “Structural Health Monitoring system of composite beams with surface bonded and embedded Fibre Bragg Grating sensors,” 2017, vol. 744, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35120.