Self-Sensing Composites: In-Situ Detection of Fibre Fracture
AbstractThe primary load-bearing component in a composite material is the reinforcing fibres. This paper reports on a technique to study the fracture of individual reinforcing fibres or filaments in real-time. Custom-made small-diameter optical fibres with a diameter of 12 (±2) micrometres were used to detect the fracture of individual filaments during tensile loading of unreinforced bundles and composites. The unimpregnated bundles were end-tabbed and tensile tested to failure. A simple technique based on resin-infusion was developed to manufacture composites with a negligible void content. In both cases, optical fibre connectors were attached to the ends of the small-diameter optical fibre bundles to enable light to be coupled into the bundle via one end whilst the opposite end was photographed using a high-speed camera. The feasibility of detecting the fracture of each of the filaments in the bundle and composite was demonstrated. The in-situ damage detection technique was also applied to E-glass bundles and composites; this will be reported in a subsequent publication. View Full-Text
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Malik, S.A.; Wang, L.; Curtis, P.T.; Fernando, G.F. Self-Sensing Composites: In-Situ Detection of Fibre Fracture. Sensors 2016, 16, 615.
Malik SA, Wang L, Curtis PT, Fernando GF. Self-Sensing Composites: In-Situ Detection of Fibre Fracture. Sensors. 2016; 16(5):615.Chicago/Turabian Style
Malik, Shoaib A.; Wang, Liwei; Curtis, Paul T.; Fernando, Gerard F. 2016. "Self-Sensing Composites: In-Situ Detection of Fibre Fracture." Sensors 16, no. 5: 615.
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