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Type: Artigo
Title: Phononic band gaps in Al2O3/Epoxy composite
Author: Miranda Jr., Edson Jansen Pedrosa
Santos, J.M.C. dos
Abstract: In this study, we have investigated the band structure of elastic waves propagating in a phononic crystal, consisting of an epoxy matrix reinforced by Al2O3 inclusions in a square and hexagonal lattices. We also studied the influence of the inclusion geometry cross section – circular, hollow circular, square and rotated square with a 45° angle of rotation with respect to the x, y axes. The plane wave expansion (PWE) method is used to solve the wave equation considering the wave propagation in the xy plane (longitudinal-transverse vibration, XY mode, and transverse vibration, Z mode). The complete band gaps between the XY and Z modes are observed to circular, square and rotated square cross section inclusion and the best performance is for rotated square cross section inclusion in a square lattice. We suggest that the Al2O3/epoxy composite is feasible for vibrations management
Subject: Cristais fonônicos
Country: Suíça
Editor: Trans Tech Publications
Rights: Fechado
Identifier DOI: 10.4028/
Date Issue: 2018
Appears in Collections:FEM - Artigos e Outros Documentos

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