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DINAME2019
DINAME2019
A study of the reflection coefficient in laminated plates immersed in acoustic fluids
Submission Author:
Bernardo Junqueira , RJ
Co-Authors:
Bernardo Junqueira, Ricardo Leiderman, DANIEL CASTELLO
Presenter: Bernardo Junqueira
doi://10.26678/ABCM.DINAME2019.DIN2019-0027
Abstract
The present work consists on computing the reflection coefficient for laminated plates immersed in acoustic fluid, making a comparison between bonding interfaces with imperfections and flawless ones. The QSA (Quasi Static Approximation), which adopts continuous distribution of normal and transversal springs as a boundary condition between layers, is used to describe these interfaces and the flaws are modeled by reducing the stiffness constants of the springs. The elastic layers are isotropic and the solution algorithm was developed with the aid of invariant embedding technique, ensuring numerical stability for the method.
Keywords
QSA, Laminated Plates, Reflection Coefficient, Interface Flaws
