Magneto-electro-thermo-elastic frequency response of functionally graded saturated porous annular plates via trigonometric shear deformation theory

Due to the unique specifications of porous materials, such as lightweight, researchers are encouraged to study more about them and use them in different engineering structures. Also, they can be integrated with other stiffer materials to overwhelm their main limitation, i.e., their low stiffness. So...

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Vydáno v:Acta mechanica Ročník 234; číslo 8; s. 3665 - 3685
Hlavní autoři: Allah Gholi, Amir Masoud, Khorshidvand, Ahmad Reza, Jabbari, Mohsen, Khorsandijou, S. Mahdi
Médium: Journal Article
Jazyk:angličtina
Vydáno: Vienna Springer Vienna 01.08.2023
Springer
Springer Nature B.V
Témata:
Analysis
Annular plates
Boundary conditions
Classical and Continuum Physics
Compressibility effects
Control
Dynamical Systems
Elastic foundations
Electromagnetic properties
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Equations of motion
Frequency response
Functionally gradient materials
Generalized differential quadrature method
Heat and Mass Transfer
Mechanical properties
Original Paper
Porosity
Porous materials
Quadratures
Resonant frequencies
Shear deformation
Solid Mechanics
Stiffness
Theoretical and Applied Mechanics
Thermal environments
Vibration
ISSN:0001-5970, 1619-6937
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Shrnutí:Due to the unique specifications of porous materials, such as lightweight, researchers are encouraged to study more about them and use them in different engineering structures. Also, they can be integrated with other stiffer materials to overwhelm their main limitation, i.e., their low stiffness. So, this work considers the frequency response of a functionally graded (FG) porous material annular plate, which is coated with two piezo-electro-magnetic layers. The FG porous core is assumed to be saturated by fluid, and the pores' compressibility effect is examined. Besides, the pores' placement patterns are regarded as three different thickness-dependent functions that affect the core's mechanical properties. Since the coating layers have electromagnetic properties, therefore electromagnetic potentials are externally applied to them. The whole structure is also rested on Pasternak elastic foundation, and the thermal environment influence is evaluated on its behavior. The trigonometric type of higher-order shear deformation theory is employed, and the governing motion equations are derived to obtain more accurate results. Then, they are solved utilizing the generalized differential quadrature method for various boundary conditions. After ensuring the validity of the results by comparing them with known data in the available literature, the effect of the most vital parameters on the frequencies of the plate is discussed. For instance, it is seen that the impact of the porosity coefficient on the natural frequencies is utterly dependent on the pores’ distribution patterns.
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ISSN:0001-5970
1619-6937
DOI:10.1007/s00707-023-03530-5