Creating the coupled band gaps in piezoelectric composite plates by interconnected electric impedance
File(s)
Published version
Author(s)
Li, Lin
Jiang, Zhou
Fan, Yu
Li, Jun
Type
Journal Article
Abstract
In this paper, we investigate the coupled band gaps created by the locking phenomenon between the electric and flexural waves in piezoelectric composite plates. To do that, the distributed piezoelectric materials should be interconnected via a ‘global’ electric network rather than the respective ‘local’ impedance. Once the uncoupled electric wave has the same wavelength and opposite group velocity as the uncoupled flexural wave, the desired coupled band gap emerges. The Wave Finite Element Method (WFEM) is used to investigate the evolution of the coupled band gap with respect to propagation direction and electric parameters. Further, the bandwidth and directionality of the coupled band gap are compared with the LR and Bragg gaps. An indicator termed ratio of single wave (RSW) is proposed to determine the effective band gap for a given deformation (electric, flexural, etc.). The features of the coupled band gap are validated by a forced response analysis. We show that the coupled band gap, despite directional, can be much wider than the LR gap with the same overall inductance. This might lead to an alternative to adaptively create band gaps.
Date Issued
2018-09-07
Date Acceptance
2018-09-04
Citation
Materials, 2018, 11 (9)
ISSN
1996-1944
Publisher
MDPI
Journal / Book Title
Materials
Volume
11
Issue
9
Copyright Statement
c 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000446395200172&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Materials Science, Multidisciplinary
Materials Science
piezoelectric composite plates
interconnected electric network
locking phenomenon
coupled band gap
wave and finite element method
FINITE-ELEMENT-METHOD
WAVE-PROPAGATION
PERIODIC STRUCTURES
PHONONIC CRYSTALS
NATURAL-MODES
VIBRATION
NETWORKS
METAMATERIALS
FORMULATION
PREDICTION
Publication Status
Published
Article Number
ARTN 1656