Structural Health Monitoring System of Composite Beams with Surface Bonded and Embedded Fibre Bragg Grating Sensors
| Autor: | Melin Sahin, Yavuz Yaman, Boray Degerliyurt, Cansu Karatas |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Surface (mathematics)
PHOSFOS Materials science Mechanical Engineering 010401 analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Composite beams 0104 chemical sciences Fiber Bragg grating Mechanics of Materials General Materials Science Structural health monitoring Composite material 0210 nano-technology |
| Zdroj: | Key Engineering Materials. 744:332-336 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.744.332 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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