2 June 2014 Dynamic measurement of inside strain distributions in adhesively bonded joints by embedded fiber Bragg grating sensor
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Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 9157A0 (2014) https://doi.org/10.1117/12.2059503
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain
Abstract
Long-length fiber Bragg grating (FBG) with the length of about 100 mm was embedded onto the surface of a carbon fiber reinforced plastics (CFRP) substrate and two CFRP adherends were joined by adhesive to form an adhesive bonded single-lap joint. The joint was subjected to 0.5 Hz cyclic tensile load and longitudinal strain distributions along FBG were measured at 5 Hz by the fiber-optic distributed sensing system based on optical frequency domain reflectometry (OFDR). We could successfully monitor the strain distributions accurately with high spatial resolution of around 1 mm.
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Hideaki Murayama, Hideaki Murayama, Xiaoguang Ning, Xiaoguang Ning, Kazuro Kageyama, Kazuro Kageyama, Daichi Wada, Daichi Wada, Hirotaka Igawa, Hirotaka Igawa, } "Dynamic measurement of inside strain distributions in adhesively bonded joints by embedded fiber Bragg grating sensor", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157A0 (2 June 2014); doi: 10.1117/12.2059503; https://doi.org/10.1117/12.2059503
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