Hygro-thermo-electro-elastic response of a functionally graded piezoelectric cylinder resting on an elastic foundation subjected to non-axisymmetric loads

Dini, Ali; Abolbashari, Mohammad Hossein

doi:10.1016/j.ijpvp.2016.09.005

Cited by 24 publications

(9 citation statements)

References 35 publications

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“…In this section, some numerical results are obtained and represented in Figs. 4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22 and 23 in order to illustrate the current solution of the FGP micro-rotating cylinder problem, where the effects of flexoelectricity, non-homogeneity constant, magnetic field, angular velocity and characteristic length parameter on the radial and circumferential stresses, radial displacement and electric potential distributions along the cylinder thickness are graphically shown. The mechanical and electric properties of lead zirconate titanate (PZT-4) for the FGP micro-rotating cylinder are listed in Table 1 [ are adopted based on [55,85,86].…”

Section: Fgp Micro-rotating Cylinder Problemmentioning

confidence: 99%

“…Akbarzadeh and Pasini [17] used a multi-physics model to study the effect of moisture, temperature, magnetic, electric and mechanical loadings on the response of multilayered and functionally graded cylinders. Dini and Abolbashari [18] analyzed a FGP thick-walled cylinder resting on Winkler elastic foundation under a non-axisymmetric hygrothermo-electro-mechanical loading. In their work, the separation of variables and complex Fourier series method were employed to solve heat conduction, moisture diffusion and Navier equations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Size-dependent analysis of a functionally graded piezoelectric micro-cylinder based on the strain gradient theory with the consideration of flexoelectric effect: plane strain problem

Dini

Shariati

Zarghami

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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In this study, a size-dependent analysis of functionally graded piezoelectric (FGP) micro-rotating cylinder is presented based on the plane strain condition and strain gradient theory, which is a non-classical theory capable of capturing the size effect in microscaled structures. The present model is used to analyze the FGP micro-rotating cylinder with the consideration of flexoelectric effects exposed to a symmetric magneto-electro-mechanical loading. All mechanical and electrical properties are assumed to be graded in the thickness direction according to a power-law distribution. With respect to the fifth-order strain gradient coefficient and electromechanical coupling, the constitutive equations are obtained from electric Gibbs free energy density, which is a function of strain, second-order deformation gradient and electric field. By substituting the constitutive equations in electric and mechanical equilibrium equations, two coupled electromechanical governing differential equations in terms of radial displacement and electric potential are derived considering centrifugal force and Lorentz magnetic force obtained from Maxwell's relations. The generalized differential quadrature method is proposed to solve the coupled governing differential equations. Numerical results attained from the strain gradient elasticity reveal the effects of flexoelectric, microstructural length scale, non-homogeneity constant, rotation and magnetic field on the response of the FGP micro-rotating cylinder.

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Section: Fgp Micro-rotating Cylinder Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Size-dependent analysis of a functionally graded piezoelectric micro-cylinder based on the strain gradient theory with the consideration of flexoelectric effect: plane strain problem

Dini

Shariati

Zarghami

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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show abstract

“…Dini and Abolbashari (2016) investigated the thick-walled cylinder formed of functionally graded piezo smart materials in the context of a non-axisymmetric PHTE mechanical stress. The general steady-state solution for three-dimensional PHTE uses the potential theory technique from Zhao et al (2018).…”

Section: Introductionmentioning

confidence: 99%

“…The temperature, moisture and other nonlinear effects on the mathematical modeling of piezoelectric intelligent structures using different vibration control approach and relevant software have been reviewed by Gupta et al (2011). Dini and Abolbashari (2016) investigated the thick-walled cylinder formed of functionally graded piezo smart materials in the context of a non-axisymmetric PHTE mechanical stress. The general steady-state solution for three-dimensional PHTE uses the potential theory technique from Zhao et al (2018).…”

Section: Introductionmentioning

confidence: 99%

Reflection at the free surface of the orthotropic piezo-hygro-thermo-elastic medium

Yadav¹,

Barak

Gupta

2023

HFF

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Purpose This paper aims to study the impact of pyro-electricity, moisture and temperature diffusivity on the energy distribution of plane waves at the free surface of an orthotropic piezo-hygro-thermo-elastic medium. Design/methodology/approach This study presents the novel creation of governing equations for an anisotropic piezothermoelastic medium with moisture impact, which is a significant contribution of this paper. Findings In addition to providing numerical data for the amplitude ratios and energy ratios of reflected waves, this study identifies five different kinds of coupled reflected plane waves, namely, quasi-longitudinal P wave, quasi-thermal wave, quasi-transverse wave, quasi-moisture wave and electric potential wave. Research limitations/implications The graphical analysis examines the impact of various factors, such as the angle of incidence, moisture and temperature diffusivity, pyro-electricity and frequency, on energy distribution. Practical implications This paper's results significantly impact the development of more efficient piezoelectric materials and their applications in geophysics. Originality/value The authors of the submitted document initiated and produced it collectively, with equal contributions from all members.

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“…The most common type of which is a continuous combination of ceramic and metal in which the variation of ceramic and metal from one surface to another is completely continuous, so that one surface is pure ceramic and another surface is pure metal and between two surfaces there is a continuous combination of both materials. Due to unique advantages of FGMs, they are potentially used in many industries such as aerospace, nuclear energy, electronics, and biomedical [1–6].…”

Section: Introductionmentioning

confidence: 99%

Analytical solution for magneto-thermo-elastic responses of an annular functionally graded sandwich disk by considering internal heat generation and convective boundary condition

Dini

Nematollahi

Hosseini

2019

Jnl of Sandwich Structures & Materials

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In this paper, an exact solution for stress distribution of a rotating sandwich disk subjected to magnetic, thermal fields, and convection heat transfer with the consideration of internal heat generation is presented. The sandwich disk is composed of three different layers in which the central layer is made of functionally graded material, whereas the inner and outer layers are made from pure metal and ceramic materials, respectively. All mechanical and thermal properties of the central layer are assumed to obey a power-law form in the radial direction with different non-homogeneity constants. Axisymmetric temperature distributions in each layer are obtained by solving Fourier heat conduction equation. By substituting the constitutive equations in equilibrium equation, a second-order differential equation in terms of radial displacement for each layer is derived by considering centrifugal force and Lorentz magnetic force obtained from Maxwell’s relations. Thereafter, the governing equations are analytically solved and radial displacement, radial and circumferential stresses for the current disk are obtained. Numerical simulations reveal the effects of internal heat generation, convection heat transfer, magnetic field, material properties, and angular velocity on the magneto-thermo-elastic response of the functionally graded sandwich disk. Also, a comparison study between metal, functionally graded, ceramic, and functionally graded sandwich disks is performed.

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Hygro-thermo-electro-elastic response of a functionally graded piezoelectric cylinder resting on an elastic foundation subjected to non-axisymmetric loads

Cited by 24 publications

References 35 publications

Size-dependent analysis of a functionally graded piezoelectric micro-cylinder based on the strain gradient theory with the consideration of flexoelectric effect: plane strain problem

Size-dependent analysis of a functionally graded piezoelectric micro-cylinder based on the strain gradient theory with the consideration of flexoelectric effect: plane strain problem

Reflection at the free surface of the orthotropic piezo-hygro-thermo-elastic medium

Analytical solution for magneto-thermo-elastic responses of an annular functionally graded sandwich disk by considering internal heat generation and convective boundary condition

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