Ultrasonic Non-Contact Air-Coupled Technique For Assessment Of Sandwich Composites Plates Using Antisymmetric Lamb Waves

Eduardo Moreno; Roberto Giacchetta; Ricardo Gonzalez; David Sanchez; Olalla Sanchez; Andrea Torre; Guillermo Cosarinsky; Wagner Coelho

doi:10.20944/preprints202309.0791.v1

A peer-reviewed article of this Preprint also exists.

Moreno, E.; Giacchetta, R.; Gonzalez, R.; Sanchez, D.; Sanchez-Sobrado, O.; Torre-Poza, A.; Cosarinsky, G.; Coelho, W. Ultrasonic Non-Contact Air-Coupled Technique for the Assessment of Composite Sandwich Plates Using Antisymmetric Lamb Waves. NDT 2023, 1, 58-73. Moreno, E.; Giacchetta, R.; Gonzalez, R.; Sanchez, D.; Sanchez-Sobrado, O.; Torre-Poza, A.; Cosarinsky, G.; Coelho, W. Ultrasonic Non-Contact Air-Coupled Technique for the Assessment of Composite Sandwich Plates Using Antisymmetric Lamb Waves. NDT 2023, 1, 58-73.

Abstract

This paper describes the design and implementation of an ultrasonic non-contact air-coupled technique (UNCACT) using antisymmetric Lamb waves (ALW) for NDT assessment in novel composite sandwich plates of the car body shell. This technique is complemented with a C-Scan image implementation using this kind of guided waves. The finite element method using Comsol 6.1 is developed for the interpretation of the several wave modes presented in the experiments, including the ALW mode. The phase velocity method (PVM) is applied for the verification of the ALW mode in the portion of the RF signal necessary in the C-Scan image.

Keywords

Subject

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Ultrasonic Non-Contact Air-Coupled Technique For Assessment Of Sandwich Composites Plates Using Antisymmetric Lamb Waves

Abstract

Keywords

Subject

Comments (0)