Crack Detection in Multi-Wire Cables Using Guided Ultrasonic Waves

Christoph Schaal 1 Lothar Gaul 1
1 Institute of Applied and Experimental Mechanics [Stuttgart]
Abstract : Automated Structural Health Monitoring schemes are developed to cost-efficiently prevent failure of mechanical and civil structures, and to predict the structure's residual life. In this work, an efficient crack detection algorithm based on the Hilbert transform is presented. By means of this algorithm, crack localization in multi-wire cables is performed through a time-of-flight analysis of the wave packets. Crack identification can be performed by evaluating the waves' amplitudes. The algorithm is fully automatized and distinguishes between wave packets from different waves independently. Its applicability is analyzed for a single cylindrical wire and for multi-wire cables.
Keywords : Damage detection and localization Civil engineering SHM applications Damage assessment
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Communication dans un congrès
Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014
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Christoph Schaal, Lothar Gaul. Crack Detection in Multi-Wire Cables Using Guided Ultrasonic Waves. Le Cam, Vincent and Mevel, Laurent and Schoefs, Franck. EWSHM - 7th European Workshop on Structural Health Monitoring, Jul 2014, Nantes, France. 2014. 〈hal-01022061〉

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