Influence of magnetic field on the wave propagation response of functionally graded (FG) beam lying on elastic foundation in thermal environment

Ebrahimi, Farzad; Seyfi, Ali; Nouraei, Mostafa; Haghi, Parisa

doi:10.1080/17455030.2020.1847359

Cited by 26 publications

(4 citation statements)

References 54 publications

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“…In this study, the FG metal-ceramic matrix of these nanocomposite layers is considered to be made of aluminum and zirconium dioxide (ZrO2). Hence, the first step in achieving the effective material properties of these double-FG nanocomposite layers would be obtaining the effective material properties of the FG Al-ZrO 2 matrix, which can be derived based on Voigt's rule of mixture [35,36]:…”

Section: Materials Model Of the Double-fg Nanocomposite Layersmentioning

confidence: 99%

Investigating forced vibration of an intelligent sandwich plate consisting of a metal foam core, stiff nanocomposite layers and active piezomagnetic face-sheets exposed to electro-magnetic potentials

Mirtabaei,

Farajollahi,

Pourseifi

2024

Phys. Scr.

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The main purpose of the present article is to present a forced vibrational analysis for a new intelligent sandwich plate made up of various layers. The proposed intelligent structure contains a porous metal foam core, super stiff double-FG nanocomposite layers, and piezomagnetic actuators which will be actuated magnetically and electrically. For the metal foam core of the structure, three kinds of porosity patterns are considered and, in the double-FG nanocomposite layers, Carbon Nanotubes (CNTS) are dispersed through various FG patterns in an FG metal-ceramic matrix. The power-law function is used to form the FG metal-ceramic matrix of the nanocomposite layers. Then, first-order shear deformation theory (FSDT) is utilized to derive the governing equations, and the resonance and natural frequencies of the proposed sandwich structure with simply-supported boundary conditions are obtained employing Navier’s analytical solution method. Finally, the effects of various parameters such as the CNTs’ volume fraction, magnetic and electric potentials, porosity patterns, core-to-nanocomposite layers thickness ratio, power-law index, etc. on the resonance behavior of the structure will be discussed based on tabular and graphical results. The results demonstrate that the occurrence of the resonance phenomenon in such a multi-layered structure remarkably depends on the mentioned parameters and can be somehow controlled by applying magnetic and electric potentials to the piezomagnetic actuators connected to the top and bottom of the structure. 

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Section: Materials Model Of the Double-fg Nanocomposite Layersmentioning

confidence: 99%

Investigating forced vibration of an intelligent sandwich plate consisting of a metal foam core, stiff nanocomposite layers and active piezomagnetic face-sheets exposed to electro-magnetic potentials

Mirtabaei,

Farajollahi,

Pourseifi

2024

Phys. Scr.

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“…The Hamilton's principle is defined as where, δU , δW and δK are the virtual strain energy, virtual work and virtual kinetic energy of the MR-laminated beam, respectively which defined as equations ( 5)- (7).…”

Section: Equations Of Motion Of Mr-laminated Beammentioning

confidence: 99%

“…Bouazza et al 6 investigated the effects of temperature distribution, length to thickness ratio, modulus ratio, and thermal expansion coefficient ratio on thermal buckling of isotropic, orthotropic and laminated composite beams. Ebrahimi et al 7 investigated the wave propagation in simply supported (S-S) functionally graded (FG) beam while the beam is exposed to magneto-thermal environments and embedded on two-parameter elastic foundation. Amara et al 8 studied the post-buckling of simply supported FGM beams using various theories, classical beam theory (CBT), first-order shear deformation beam theory (FSDBT), parabolic shear deformation beam theory (PSDBT) and exponential shear deformation beam theory (ESDBT).…”

Section: Introductionmentioning

confidence: 99%

Effects of size and location of magnetorheological segments on random vibration response of laminated composite beams using an N-layer of layerwise theory

Momeni

Zabihollah

Behzad

2023

Journal of Thermoplastic Composite Materials

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Laminated composite beams are widely used in engineering applications, including wind turbine blades and automobile, where the structures are highly subjected to non-deterministic random loadings, requiring a reliable technique to ensure the stability of the structure during operation. Recently, to mitigate the effects of random loadings on the structural stability of the structure, segments of magnetorheological (MR) fluids have been embedded in the laminated beams (MR-laminated beams). In this work, the effects of the size and location of MR-fluid segments on random vibration characteristics are investigated. A laminated beam is considered in which several layers/segments are filled with MR fluids and are subjected to several random loads. An N-layer model of layerwise theory (LWT) developed by the present authors in previous work is considered for computational purposes. A finite element model based on LWT is developed to study the numerical examples. MR-laminated beams consist of five sections; two MR-fluid sections and three composite sections have been studied using LWT. To justify the numerical results, the first three natural frequencies of a laminated beam without an MR layer are solved using a 3D model in COMSOL software which shows a close match with the results of LWT. An in-house experimental setup has been developed to verify the simulation results. The simulation results are then compared with the first-order shear deformation theory (FSDT) and verified by several experimental tests. The effects of MR fluid segments on the dynamic response of MR-laminated beams for six different configurations have been investigated. In addition, the effects of thicknesses of MR fluid section on the dynamic behavior of structures have been investigated. Effects of magnetic fields on statistical properties, correlation, and autocorrelation on MR-laminated beams made of E-glass and fiber-carbon have been investigated. As a case study, the vibration response of a wind turbine blade made of an MR-laminated beam has been investigated using a narrow band process.

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“…Sitli, Mhada 12 have examined the stability and post-buckling response of FGM plates subjected to various loading conditions using the asymptotic numerical method and finite element method (FEM). Ebrahimi, Seyfi 13 have probed wave dispersion characteristic of magnetically affected FGM beam resting on a Winkler–Pasternak foundation in the thermal environment using HSDT.…”

Section: Introductionmentioning

confidence: 99%

A new higher-order shear deformation theory for frequency analysis of functionally graded porous plates

Seyfi

Maleki

Chen

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The current investigation aims to account for the influence of porosity modeling while studying the dynamic response of functionally graded material (FGM) plates within the framework of a new, higher-order shear deformation theory for the first time. In the newly developed porosity modeling, the reciprocal effect of mass density and Young’s modulus is considered. Furthermore, silicon carbide in the ceramic phase and nickel in the metallic phase are selected as the constituent materials of the functionally graded plate. Based upon the new higher-order theory, the kinetic and kinematic relations are derived. This theory does not need any shear correction factor. The dynamic form of the principle of virtual work is employed to achieve governing equations of structure. Afterward, Galerkin’s method is implemented to solve obtained governing equations of porous, functionally graded plates. In order to verify the accuracy of the method, the obtained results were compared with the results reported in the literature, and good agreement was found. At last, the influences of some parameters such as porosity coefficient, length to thickness ratio, and aspect ratio of the porous, FGM plate on the dimensionless frequency are studied and the results are illustrated in detail.

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Influence of magnetic field on the wave propagation response of functionally graded (FG) beam lying on elastic foundation in thermal environment

Cited by 26 publications

References 54 publications

Investigating forced vibration of an intelligent sandwich plate consisting of a metal foam core, stiff nanocomposite layers and active piezomagnetic face-sheets exposed to electro-magnetic potentials

Investigating forced vibration of an intelligent sandwich plate consisting of a metal foam core, stiff nanocomposite layers and active piezomagnetic face-sheets exposed to electro-magnetic potentials

Effects of size and location of magnetorheological segments on random vibration response of laminated composite beams using an N-layer of layerwise theory

A new higher-order shear deformation theory for frequency analysis of functionally graded porous plates

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