Linear and non-linear analysis of composite plates using guided acoustic waves
AffiliationUniv Arizona, Aerosp & Mech Engn Dept
Univ Arizona, Dept Civil & Architectural Engn & Mech
KeywordsGuided ultrasonic waves
Fast Fourier Transform (FFT)
Side band peak count (SPC)
Lead Zirconate Titanate (PZT)
Non-Destructive Testing (NDT)
Time of flight (TOF)
MetadataShow full item record
PublisherSPIE-INT SOC OPTICAL ENGINEERING
CitationH. Alnuaimi, U. Amjad, P. Russo, V. Lopresto, and T. Kundu "Linear and non-linear analysis of composite plates using guided acoustic waves", Proc. SPIE 10972, Health Monitoring of Structural and Biological Systems XIII, 109720X (1 April 2019); https://doi.org/10.1117/12.2513783
Rights© 2019 SPIE.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at email@example.com.
AbstractGuided acoustic wave techniques have been found to be very effective for damage detection. In this investigation Lead Zirconate Titanate (PZT) transducers are used to generate guided acoustic waves for structural health monitoring of a variety of composite specimens. Multiple sets of composite plate specimens are inspected for impact induced damage detection using PZT transducers. Composite samples are divided into two groups for comparative studies i.e. glass fiber composites and basalt fiber composites. They are damaged by impactors having different levels of impact energy. A chirp signal is excited and propagated through the specimens in a single sided excitation/detection setup to investigate the damages induced by impacts of varying intensity. Signal processing of the recorded signals for damage analysis involved both linear and nonlinear analyses. Linear ultrasonic analysis such as change in the time-of-flight of the propagating waves, Fast Fourier Transform and S-Transform of the recorded signals were tried out while the nonlinear ultrasonic analysis involved the Sideband Peak Count or the SPC technique.
VersionFinal published version
SponsorsQatar University (Doha, Qatar)