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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vlekken, J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2009Strain monitoring of FRP elements using an embedded fibre optic sensorcitations
- 2008Non-destructive evaluation of composite structures using an innovative Bragg sensor
- 2008Non-destructive evaluation of composite structures using an innovative Bragg sensor
- 2008The use of optical fibers for fatigue testing of fiber-reinforced thermoplastics
- 2008The use of optical fibers for fatigue testing of fiber-reinforced thermoplastics
- 2008Delamination detection with fibre Bragg gratings based on dynamic behaviourcitations
- 2007Strain monitoring in thermoplastic composites with optical fiber sensors: embedding process, visualization with micro-tomography, and fatigue results
- 2007Three-dimensional strain and temperature monitoring of composite laminatescitations
- 2007Feasibility study of an embedded Multi-Axial fibre bragg grating sensorcitations
- 2007Strain monitoring in thermoplastic composites with optical fiber sensors: Embedding process, visualization with micro-tomography, and fatigue resultscitations
- 2007A thin foil optical strain gage based on silicon-on-insulator microresonators - art. no. 661914citations
- 2006Measurement of multi-axial stress/strain in composite elements with Bragg sensors
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article
Strain monitoring in thermoplastic composites with optical fiber sensors: embedding process, visualization with micro-tomography, and fatigue results
Abstract
This study investigates the possibility of using optical fibers with Bragg gratings for measurements under fatigue loading conditions. Detailed information is given on the principle of optical fiber measurements, the embedding process, and the fatigue tests. To verify the strain derived from the optical fiber, the strain is compared with extensometer measurements. A special design of the blades of the extensometer is presented, since the standard blades suffer from a loss of grip on the surface of the specimen. Furthermore, X-ray micro-tomography is discussed and used for the visualization of the optical fibers and damage in the composite material. The material used for this study is a carbon fiber- reinforced polyphenylene sulfide. It can be concluded that the optical fiber survives over half a million loading cycles, without de-bonding of the fiber. Furthermore, the resolution of the micro-tomography is high enough to visualize not only the optical fiber, but also damage in the material.