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DINAME2019
DINAME2019
Flexural wave band gaps in locally resonant elastic metamaterial plate using Reissner-Mindlin theory
Submission Author:
Anderson Ferreira , SP
Co-Authors:
Anderson Ferreira, Jose Maria Campos dos Santos, Edilson Dantas Nóbrega, Edson Jansen Pedrosa de Miranda Junior
Presenter: Anderson Ferreira
doi://10.26678/ABCM.DINAME2019.DIN2019-0153
Abstract
The authors presents a study of the propagation of flexural waves in a locally resonant (LR) thick plate made of a two-dimensional periodic array of spring–mass resonators attached on a thick homogeneous plate. The well-known plane wave expansion method (PWE) is extended to deal with such a plate system with a periodic array of lumped resonant elements. Explicit matrix formulations are developed for the calculation of band structures to quantify the wave attenuation performance of band gaps. Modal analysis and forced response are computed by finite element method.The final objective will be to show that the two methods used agree with one another with the relation of wave attenuation in periodic structures.
Keywords
Elastic Metamaterial thick plate, Flexural wave band gaps, Vibration control
