Guided wave structural health monitoring with an array of novel piezoelectric transducers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Multi-element, conformable piezoelectric strip transducers have been designed and fabricated for structural health monitoring using ultrasonic guided waves. The piezoelectric fiber composite elements function as a strip transducer to activate a planar wave. A mockup of a storage tank or pressure vessel has been constructed from a steel shell and a hexagonal array of strip transducers. A hot spot to which artificial damage has been induced is monitored with the strip transducers. In addition, conventional piezoelectric disks have also been affixed to the shell in a circular pattern for the purpose of comparison. Different operating conditions are represented by the presence of water inside the shell and temperature variations between 20 and 35°C. The strip transducers have been designed to excite the S1 Lamb wave mode at the dilatational wave speed, which is oblivious to the presence of liquid loaded boundary conditions. An artificial defect simulated a surface breaking fatigue crack. Preliminary results are presented for baseline and damaged conditions using transmission and reflection coefficients as a damage-sensitive feature.

Original languageEnglish (US)
Title of host publication40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing
PublisherAmerican Institute of Physics Inc.
Pages224-231
Number of pages8
ISBN (Print)9780735412118
DOIs
StatePublished - Jan 1 2014
Event40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013 - Baltimore, MD, United States
Duration: Jul 21 2013Jul 26 2013

Publication series

NameAIP Conference Proceedings
Volume1581 33
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other40th Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2013, Incorporating the 10th International Conference on Barkhausen and Micro-Magnetics, ICBM 2013
CountryUnited States
CityBaltimore, MD
Period7/21/137/26/13

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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  • Cite this

    Lesky, A., & Lissenden, III, C. J. (2014). Guided wave structural health monitoring with an array of novel piezoelectric transducers. In 40th Annual Review of Progress in Quantitative Nondestructive Evaluation - Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing (pp. 224-231). (AIP Conference Proceedings; Vol. 1581 33). American Institute of Physics Inc.. https://doi.org/10.1063/1.4864824