Defect Detection and Imaging in Composite Structures Using Magnetostrictive Patch Transducers

Akram Zitoun; Steven Dixon; Mihalis Kazilas; David Hutchins

doi:10.3390/s23020600

Defect Detection and Imaging in Composite Structures Using Magnetostrictive Patch Transducers

Sensors (Basel). 2023 Jan 5;23(2):600. doi: 10.3390/s23020600.

Authors

Akram Zitoun¹, Steven Dixon², Mihalis Kazilas¹, David Hutchins³

Affiliations

¹ Brunel Composites Centre, College of Engineering, Design and Physical Sciences, Brunel University London, London UB8 3PH, UK.
² Department of Physics, The University of Warwick, Coventry CV4 7AL, UK.
³ School of Engineering, The University of Warwick, Coventry CV4 7AL, UK.

Abstract

The use of thin magnetostrictive patches to generate and detect guided waves within the composite samples is investigated for defect detection. This approach has been implemented using SH0 shear horizontal guided waves in both CFRP and GFRP plates. A magnetostrictive patch transducer was able to generate SH0 waves with known directional characteristics. The synthetic aperture focusing technique (SAFT) was then used to reconstruct images of defects using multiple transmission and detection locations. The results for imaging defects in both types of material are presented.

Keywords: SAFT imaging technique; guided waves; magnetostriction.

MeSH terms

Diagnostic Imaging*
Transducers*

Grants and funding

722134/Marie Skłodowska Curie Training Network in Non-Destructive Testing and Structural Health Monitoring of Aircraft structures (MSCA-ITN)