Journal article
Health Monitoring of UAV Wing Skin-to-spar Joints using Guided Waves and Macro Fiber Composite Transducers
Journal of intelligent material systems and structures, v 18(4), pp 373-388
01 Apr 2007
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This article deals with the monitoring of the composite wing skin-to-spar joint in unmanned aerial vehicles using ultrasonic guided waves. The study investigates simulated wing skin-to-spar joints with two different types of bond defects, namely poorly cured adhesive and disbonded interfaces. The bond-sensitive feature considered is the ultrasonic strength of transmission through the joints. The dispersive wave propagation problem is studied numerically by a semi-analytical finite element method that accounts for viscoelastic damping, and experimentally by ultrasonic testing that uses highly durable, flexible macro fiber composite transducers. The discrete wavelet transform is also employed to de-noise and compress the ultrasonic measurements. Both numerical and experimental tests confirm that the ultrasonic strength of transmission increases across the defected bonds.
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Details
- Title
- Health Monitoring of UAV Wing Skin-to-spar Joints using Guided Waves and Macro Fiber Composite Transducers
- Creators
- Francesco Lanza Discalea - University of California San DiegoHoward Matt - University of California San DiegoIvan Bartoli - University of California San DiegoStefano Coccia - University of California San DiegoGyuhae Park - Los Alamos National LaboratoryCharles Farrar - Los Alamos National Laboratory
- Publication Details
- Journal of intelligent material systems and structures, v 18(4), pp 373-388
- Publisher
- Sage
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000245177100007
- Scopus ID
- 2-s2.0-33947236389
- Other Identifier
- 991020547445304721
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary