dc.contributor.authorZhou, Xiaoling
dc.contributor.authorXu, Yanlong
dc.contributor.authorWang, Longqi
dc.identifier.citationZhou, X., Xu, Y., & Wang, L. (2018). Tuning flexural elastic wave propagation in electroactive phononic crystals. Journal of Applied Physics, 123(22), 225103-. doi:10.1063/1.5024880en_US
dc.description.abstractIn this paper, we investigate the flexural elastic wave propagation properties in phononic crystals (PCs) consisting of co-axial steel and electrorheological (ER) elastomer pillars deposited on a thin plate. The finite element method and the super cell technique are used to calculate the band structures and transmission spectra. It is found that the band gap boundaries of the PCs can be tuned by applying an electric field to the ER elastomer component. The relationship between the band gap boundaries and the electric field is given. It is also found that point and line defects can be created by properly applying an electric field to some of the cells. These defects bring defect bands inside the original band gaps and lead to elastic wave confinement in the point defect or along the line defect. The dependence of the defect band frequencies on the electric field is expounded. Band gap tunability, wave confinement, and wave guiding achieved by applying electric field in this paper are useful in applications of flexural vibration reduction and energy harvesting in engineering.en_US
dc.format.extent7 p.en_US
dc.relation.ispartofseriesJournal of Applied Physicsen_US
dc.rights© 2018 The Author(s). All rights reserved. This paper was published by AIP Publishing in Journal of Applied Physics and is made available with permission of The Author(s).en_US
dc.subjectPhononic Crystalsen_US
dc.subjectFlexural Waveen_US
dc.subjectDRNTU::Engineering::Civil engineeringen_US
dc.titleTuning flexural elastic wave propagation in electroactive phononic crystalsen_US
dc.typeJournal Article
dc.contributor.schoolSchool of Civil and Environmental Engineeringen_US
dc.description.versionPublished versionen_US

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