Kaplunov, J, Prikazchikov, DA and Prikazchikova, LA (2017) Dispersion of elastic waves in laminated glass. Procedia Engineering, 199. 1489 -1494. ISSN 1877-7058

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Elastic sandwich-type structures with high-contrast material and geometrical properties have numerous applications in modern engineering, including, in particular, laminated glass, photovoltaic panels, precipitator plates in gas filters, etc. Multi-parametric modelling of such structures assumes taking into consideration various types of contrast in stiffness, density and thickness. The present contribution is concerned with analysis of low-frequency dispersion of elastic waves in case of an antisymmetric motion of a three-layered symmetric plate, modelling laminated glass. The conditions on material and geometrical parameters, leading to the lowest non-zero thickness shear resonance frequency tending to zero, are formulated. In this case the dispersion relation possesses two low-frequency modes instead of a single fundamental low-frequency mode, which is typical for a homogeneous plate. A two-mode uniform asymptotic approximation is constructed, along with local approximations for the fundamental mode and the first shear harmonic.

Item Type: Article
Additional Information: Paper presented at X International Conference on Structural Dynamics, EURODYN 2017. This is the final published version of the article (version of record). It first appeared online via Elsevier at https://doi.org/10.1016/j.proeng.2017.09.428 - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: Asymptotic, contrast, laminated glass, plate, wave
Subjects: Q Science > QC Physics
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Natural Sciences > School of Computing and Mathematics
Depositing User: Symplectic
Date Deposited: 19 Sep 2017 14:21
Last Modified: 09 Apr 2021 13:41
URI: https://eprints.keele.ac.uk/id/eprint/4027

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