Piliposyan, D, Ghazaryan, K and Piliposian, G
(2022)
Localization of electro-elastic shear waves in a periodically stratified piezoelectric structure.
JOURNAL OF SOUND AND VIBRATION, 536.
p. 117142.
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Abstract
We investigate the localization of electro-elastic shear waves travelling along a homogeneous piezoelectric superlattice waveguide with thin electrodes periodically inserted parallel to the waveguide faces. The transfer matrix between two neighbouring sub-layers is constructed based on the electrically shorted conditions on the electrodes. A relationship is established between elastic displacements of the top and bottom faces of the superlattice when these faces are traction free. When they are clamped a relationship is established between tangential stresses on the two faces. It is shown that due to the electro-mechanical coupling, waves can be localized at interfaces in the structure if the electrodes are non-uniformly distributed along the thickness of the piezoelectric waveguide. The localization of waves significantly increases with the number of non-symmetrically introduced electrodes between the layers. The results of the paper can be helpful in the design of narrow band filters or multi-channel piezoelectric filters.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Piezoelectric, Periodic, Wavelocalization, Transfermatrix |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 11 Jul 2022 12:55 |
| Last Modified: | 20 Jun 2023 01:30 |
| DOI: | 10.1016/j.jsv.2022.117142 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3158016 |
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