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|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|
|Editor:||Trans Tech Publications|
|Appears in Collections:||FEM - Artigos e Outros Documentos|
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