Hexagonal array structure for 2D NDE applications

Jerzy Dziewierz, Sivaram Nishal Ramadas, Anthony Gachagan, Richard O'Leary

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

1 Citation (Scopus)

Abstract

This paper describes a combination of simulation and experimentation to evaluate the advantages offered by utilizing a hexagonal shaped array element in a 2D NDE array structure. The active material is a 1–3 connectivity piezoelectric composite structure incorporating triangular shaped pillars—each hexagonal array element comprising six triangular pillars. A combination of PZFlex, COMSOL and Matlab has been used to simulate the behavior of this device microstructure, for operation around 2.25 MHz, with unimodal behavior and low levels of mechanical cross-coupling predicted. Furthermore, the application of hexagonal array elements enables the array aperture to increase by approximately 30%, compared to a conventional orthogonal array matrix and hence will provide enhanced volumetric coverage and SNR. Prototype array configurations demonstrate good corroboration of the theoretically predicted mechanical cross-coupling between adjacent array elements.
Original languageEnglish
Title of host publicationReview of progress in quantitative nondestructive evaluation
Subtitle of host publicationAIP Conference Proceedings
EditorsD.O. Thompson, D.E. Chimenti
Place of PublicationMelville
Pages825-830
Number of pages6
Volume29
DOIs
Publication statusPublished - 22 Feb 2010
Event36th Annual Review of Progress in Quantitative Nondestructive Evaluation - Kingston, Rhode Island, United States
Duration: 26 Jul 200931 Jul 2009

Publication series

Name AIP Conference Proceedings
PublisherAmerican Institute of Physics
Volume1211
ISSN (Print)0094-243X

Conference

Conference36th Annual Review of Progress in Quantitative Nondestructive Evaluation
CountryUnited States
CityKingston, Rhode Island
Period26/07/0931/07/09

Keywords

  • 2D piezoelectric array
  • hexagonal elements
  • ultrasonic inspection
  • performance
  • transducer arrays

Fingerprint Dive into the research topics of 'Hexagonal array structure for 2D NDE applications'. Together they form a unique fingerprint.

  • Projects

  • Equipment

  • Cite this

    Dziewierz, J., Ramadas, S. N., Gachagan, A., & O'Leary, R. (2010). Hexagonal array structure for 2D NDE applications. In D. O. Thompson, & D. E. Chimenti (Eds.), Review of progress in quantitative nondestructive evaluation: AIP Conference Proceedings (Vol. 29, pp. 825-830). ( AIP Conference Proceedings; Vol. 1211).. https://doi.org/10.1063/1.3362496