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21 November 2017 Feasibility study on measuring axial and transverse stress/strain components in composite materials using Bragg sensors
G. Luyckx, J. Degrieck, W. De Waele, W. Van Paepegem, J. Van Roosbroeck, K. Chah, J. Vlekken, I. McKenzie, A. Obst
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Proceedings Volume 10567, International Conference on Space Optics — ICSO 2006; 105672F (2017) https://doi.org/10.1117/12.2308102
Event: International Conference on Space Optics 2006, 2006, Noordwijk, Netherlands
Abstract
A fibre optic sensor design is proposed for simultaneously measuring the 3D stress (or strain) components and temperature inside thermo hardened composite materials. The sensor is based on two fibre Bragg gratings written in polarisation maintaining fibre. Based on calculations of the condition number, it will be shown that reasonable accuracies are to be expected. First tests on the bare sensors and on the sensors embedded in composite material, which confirm the expected behaviour, will be presented.
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G. Luyckx, J. Degrieck, W. De Waele, W. Van Paepegem, J. Van Roosbroeck, K. Chah, J. Vlekken, I. McKenzie, and A. Obst "Feasibility study on measuring axial and transverse stress/strain components in composite materials using Bragg sensors", Proc. SPIE 10567, International Conference on Space Optics — ICSO 2006, 105672F (21 November 2017); https://doi.org/10.1117/12.2308102
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KEYWORDS
Fiber Bragg gratings
Sensors
Capillaries
Composites
Calibration
Condition numbers
Polarization
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