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.
https://hal.inria.fr/hal-01022061 Contributor : Anne JaiguConnect in order to contact the contributor Submitted on : Thursday, July 10, 2014 - 10:00:12 AM Last modification on : Thursday, July 10, 2014 - 10:36:44 AM Long-term archiving on: : Friday, October 10, 2014 - 11:02:42 AM
Christoph Schaal, Lothar Gaul. Crack Detection in Multi-Wire Cables Using Guided Ultrasonic Waves. EWSHM - 7th European Workshop on Structural Health Monitoring, IFFSTTAR, Inria, Université de Nantes, Jul 2014, Nantes, France. ⟨hal-01022061⟩