نتایج جستجو برای: functionally graded nano plate

تعداد نتایج: 198265  

2017
Yufeng Xing Zekun Wang

This work concerns the critical buckling temperature of functionally graded rectangular thin plates; the properties of functionally graded material vary continuously in accordance with the power law of thickness z. Closed form solutions for the critical thermal parameter are obtained for the plate with the following boundary condition combinations: simply supported, clamped and guided edges, un...

Journal: :international journal of advanced design and manufacturing technology 0
shahrooz shams faculty of mechanical engineering, university of kashan, kashan, iran behzad soltani faculty of mechanical engineering, university of kashan, kashan, iran

this article deals with the buckling analysis of perfectly bonded cross-ply laminated composite plates reinforced by wavy carbon nanotubes (cnts) under in-plane loads using element free galerkin (efg) method based on first-order shear deformation theory (fsdt). the wavy single-walled cnts and poly-co-vinylene are used for the fibers and the matrix, respectively. the cnt fibers are distributed i...

Journal: :journal of solid mechanics 0
a amiri mechanical engineering department, urmia university, urmia, iran g rezazadeh mechanical engineering department, urmia university, urmia, iran r shabani mechanical engineering department, urmia university, urmia, iran a khanchehgardan mechanical engineering department, urmia university, urmia, iran

in this paper, the stability of a functionally graded magneto-electro-elastic (fg-mee) micro-beam under actuation of electrostatic pressure is studied. for this purpose euler-bernoulli beam theory and constitutive relations for magneto-electro-elastic (mee) materials have been used. we have supposed that material properties vary exponentially along the thickness direction of the micro-beam. gov...

2017
D. Kennedy F. J. Alcazar Arevalo

Functionally graded plates whose material properties vary continuously through the thickness are modelled as exactly equivalent plates composed of up to four isotropic layers. Separate models are derived for analysis using classical plate theory, firstorder and higher-order shear deformation theory. For cases where Poisson’s ratio varies through the thickness, the integrations required to obtai...

Journal: :iranian journal of mechanical engineering transactions of the isme 0
mohammad reza eslami amirkabir university of technology r. shahsiah mechanical engineering department, islamic azad university, tehran central branch, k.m. nikbin

in this article, thermal stability of beams made of functionally graded material (fgm) is considered. the derivations of equations are based on the one-dimensional theory of elasticity. the material properties vary continuously through the thickness direction. tanigawa's model for the variation of poisson's ratio, the modulus of shear stress, and the coefcient of thermal expansion is...

2018
Yu Fu Jianjun Yao Zhenshuai Wan Gang Zhao

In this paper, a modified Fourier series method is presented for the free vibration of moderately thick orthotropic functionally graded plates with general boundary restraints based on the first-order shear deformation theory. Regardless of boundary restraints, displacements and rotations of each plate are described as an improved form of double Fourier cosine series and several closed-form aux...

2008
J. Sladek V. Sladek P. Solek P. H. Wen S. N. Atluri

A meshless local Petrov-Galerkin (MLPG) method is applied to solve problems of Reissner-Mindlin shells under thermal loading. Both stationary and thermal shock loads are analyzed here. Functionally graded materials with a continuous variation of properties in the shell thickness direction are considered here. A weak formulation for the set of governing equations in the Reissner-Mindlin theory i...

2014
E. V. Granados

This paper presents a thermoelastic bending analysis of functionally graded sandwich plates by using a new quasi-3D hybrid type higher order shear deformation theory (HSDT). The mathematical model contains only 5 unknowns as the first order shear deformation theory (FSDT). The nonlinear term of the temperature field is modeled in such way that can be different from the shape functions of the di...

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