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. NDT2023, 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.
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. NDT2023, 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.
Copyright:
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