Journal article
Temperature Effect on Guided Wave Based Macrofiber Composite Transduction
Materials evaluation, Vol.66(10), pp.1071-1076
01 Oct 2008
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Monitoring of adhesively bonded carbon fiber reinforced plastic composite joints through the use of ultrasonic guided waves is the focus of this paper. The examined components are representative of the wing skin-to-spar joints of unmanned aerial vehicles. The study investigates two different types of bond discontinuities, namely poorly cured adhesive and disbonded interfaces. Die guided wave propagation problem is analytically studied by a proposed model flint accounts for all relevant temperature-dependent parameters of a pitch/catch system on a carbon fiber reinforced plastic composite plate. Actuator/plate and plate/sensor interactions through shear-lag behavior piezoelectric and dielectric permittivity properties of the transducers, and Lamb wave dispersion properties of the substrate plate are included in the model. The model is used to predict the So response spectra in a composite plate for the temperature range of 233 to 333 K, which represents normal aircraft operational variability.
Multiple guided wave features are considered in both the time and frequency domains. The statistical variation of these features, due to large fluctuations in ambient temperature, is quantified and used to populate the baseline data set. Automated damage identification within the joints is successfully achieved under changing environmental conditions using a multivariate outlier analysis.
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Details
- Title
- Temperature Effect on Guided Wave Based Macrofiber Composite Transduction
- Creators
- Salvatore Salamone - Univ Calif San Diego, NDE, Dept Struct Engn, La Jolla, CA 92093 USAIvan Bartoli - Univ Calif San Diego, Struct Hlth Monitoring Lab, Dept Struct Engn, La Jolla, CA 92093 USAFrancesco Lanza di Scalea - Univ Calif San Diego, NDE, Dept Struct Engn, La Jolla, CA 92093 USAStefano Coccia - Univ Calif San Diego, NDE, Dept Struct Engn, La Jolla, CA 92093 USA
- Publication Details
- Materials evaluation, Vol.66(10), pp.1071-1076
- Publisher
- Amer Soc Nondestructive Test
- Number of pages
- 6
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Identifiers
- 991020547792804721
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- Materials Science, Characterization & Testing