Conference proceeding
Temperature effects in Lamb-wave structural health monitoring systems
Proceedings of SPIE, v 7295(1), pp 72950O-72950O-11
01 Mar 2009
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
There is a need to better understand the effect of temperature changes on the response of ultrasonic guided-wave pitchcatch systems used for Structural Health Monitoring. A model is proposed to account for all relevant temperaturedependent parameters of a pitch-catch system on an isotropic plate and a fiber-reinforced composite laminate, including the actuator-plate and plate-sensor interactions through shear-lag behavior, the piezoelectric and dielectric permittivity properties of the transducers, and the Lamb wave dispersion properties of the substrate plate. The model is used to predict the S
response spectra in for the temperature range of -40°C to +60°C which accounts for normal aircraft operations. The transducers examined are flexible Macro-Fiber Composite type P1 patches. The study shows substantial changes in Lamb wave amplitude response caused solely by temperature excursions. It is also shown that, for the transducers considered, the response amplitude changes follow two opposite trends below and above ambient temperature (20°C), respectively. These results can provide a basis for the compensation of temperature effects in guided-wave damage detection systems.
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1 citations in Scopus
Details
- Title
- Temperature effects in Lamb-wave structural health monitoring systems
- Creators
- Salvatore Salamone - University of California San DiegoFrancesco Lanza di Scalea - University of California San DiegoIvan Bartoli - University of California San Diego
- Publication Details
- Proceedings of SPIE, v 7295(1), pp 72950O-72950O-11
- Conference
- Health Monitoring of Structural and Biological Systems 2009 (2009)
- Publisher
- Society of Photo-Optical Instrumentation Engineers (SPIE)
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000784162300020
- Scopus ID
- 2-s2.0-66749142590
- Other Identifier
- 991020547317804721
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InCites Highlights
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- Web of Science research areas
- Computer Science, Theory & Methods
- Optics