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JOURNALS // Izvestiya of Saratov University. Mathematics. Mechanics. Informatics // Archive

Izv. Saratov Univ. Math. Mech. Inform., 2020 Volume 20, Issue 2, Pages 193–204 (Mi isu838)

Scientific Part
Mechanics

Unsteady electromagnetic elasticity of piezoelectrics considering diffusion

N. A. Zvereva, A. V. Zemskovba, D. V. Tarlakovskiiba

a Moscow Aviation Institute (National Research University), 4 Volokolamskoye Shosse, Moscow 125993, Russia
b Institute of Mechanics Lomonosov Moscow State University, 1 Michurinsky Prospekt, Moscow 119192, Russia

Abstract: The paper considers a model of the linear theory of deformation of elastic continuum with diffusion and piezoelectric effect taken into account, which describes the relationship between mechanical deformations, mass transfer, and the internal electric field. A one-dimensional model of electromagnetic diffusion in a rectangular Cartesian coordinate system is used. At the present level, the methods of solving the corresponding initial-boundary value problems based on the application of the integral Laplace transform and decomposition into trigonometric Fourier series are described. Based on the solution of model problems, the effect of the fields coupling on the processes of dynamic deformation are shown. The results of the calculations are presented in analytical form and in the form of graphs.

Key words: electromagnetic elasticity, piezoelectromagnetism, elastic diffusion, unsteady problems.

UDC: 539.3

Received: 25.04.2019
Accepted: 26.06.2019

DOI: 10.18500/1816-9791-2020-20-2-193-204



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