Microstructured optical fiber Bragg grating-based shear stress sensing in adhesive bonds

Sanne Sulejmani; Camille Sonnenfeld; Thomas Geernaert; Geert Luyckx; Danny Van Hemelrijck; Pawel Mergo; Krzysztof Skorupski; Waclaw Urbanczyk; Karima Chah; Hugo Thienpont; Francis Berghmans

doi:10.1117/12.2059076

2 June 2014 Microstructured optical fiber Bragg grating-based shear stress sensing in adhesive bonds

Sanne Sulejmani, Camille Sonnenfeld, Thomas Geernaert, Geert Luyckx, Danny Van Hemelrijck, Pawel Mergo, Krzysztof Skorupski, Waclaw Urbanczyk, Karima Chah, Hugo Thienpont, Francis Berghmans

Author Affiliations +

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91577P (2014) https://doi.org/10.1117/12.2059076
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

We present shear stress sensing with a Bragg grating sensor fabricated in a highly birefringent microstructured optical fiber. This sensor has a shear strain sensing resolution of 0.04 pm/με when embedded in a shear loaded adhesive bond. We achieve discrete shear stress mapping in an adhesive bond by embedding a multitude of these sensors at different locations in the bond line. Experiments and numerical modeling show the limited influence of angular misalignment of the sensor on its shear stress response. Finally, we discuss the cross-sensitivity of this sensor to shear strain and temperature.

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Sanne Sulejmani, Camille Sonnenfeld, Thomas Geernaert, Geert Luyckx, Danny Van Hemelrijck, Pawel Mergo, Krzysztof Skorupski, Waclaw Urbanczyk, Karima Chah, Hugo Thienpont, and Francis Berghmans "Microstructured optical fiber Bragg grating-based shear stress sensing in adhesive bonds", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91577P (2 June 2014); https://doi.org/10.1117/12.2059076

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