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Multi-parametric dynamic analysis of lightweight elastic laminates

Prikazchikov; Kaplunov; Prikazchikova

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Abstract

Multi-parametric asymptotic analysis of dynamic phenomena in lightweight three-layered structures is performed. The presence of high contrast in densities of skin and core layers may lead to the small value of the lowest shear thickness resonance frequency, allowing a two-mode long wave low-frequency approximation of the exact dispersion relation. The range of uniform asymptotic validity of the two-mode approximation with respect to relative thickness and density are established. The theoretical predictions are illustrated numerically.

Acceptance Date Oct 24, 2019
Publication Date Dec 13, 2019
Journal IOP Conference Series: Materials Science and Engineering
Print ISSN 1757-8981
Publisher IOP Publishing
DOI https://doi.org/10.1088/1757-899X/683/1/012014
Publisher URL https://doi.org/10.1088/1757-899X/683/1/012014

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