Asymptotic Analysis of an Elastic Layer under Light Fluid Loading

Sheeru Shamsi and Ludmila Prikazchikova ()
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Sheeru Shamsi: School of Computer Science and Mathematics, Keele University, Keele ST5 5BG, UK
Ludmila Prikazchikova: School of Computer Science and Mathematics, Keele University, Keele ST5 5BG, UK

Mathematics, 2024, vol. 12, issue 10, 1-14

Abstract: Asymptotic analysis for an elastic layer under light fluid loading was developed. The ratio of fluid and solid densities was chosen as the main small parameter determining a novel scaling. The leading- and next-order approximations were derived from the full dispersion relation corresponding to long-wave, low-frequency, antisymmetric motions. The asymptotic plate models, including the equations of motion and the impenetrability condition, motivated by the aforementioned shortened dispersion equations, were derived for a plane-strain setup. The key findings included, in particular, the necessity of taking into account transverse plate inertia at the leading order, which is not the case for heavy fluid loading. In addition, the transverse shear deformation, rotation inertia, and a number of other corrections appeared at the next order, contrary to the previous asymptotic developments for fluid-loaded plates not assuming a light fluid loading scenario.

Keywords: fluid–structure interaction; elastic layer; asymptotic analysis; light fluid loading; refined plate models (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2024
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