Results 31 to 40 of about 12,853 (286)

Free Vibration Analysis of FG Porous Sandwich Plates under ‎Various Boundary Conditions [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
In the present work, free vibration analysis of the square sandwich plate with functionally graded (FG) porous face sheets and isotropic homogenous core is performed under various boundary conditions.
Lazreg Hadji, Mehmet Avcar
doaj   +1 more source

Biaxial Buckling and Bending of Smart Nanocomposite Plate Reinforced by CNTs using Extended Mixture Rule Approach [PDF]

open access: yesMechanics of Advanced Composite Structures, 2014
In this research, the buckling and bending behaviour of smart nanocomposite plate reinforced by single- walled carbon nanotubes (SWCNTs) under electro-magneto-mechanical loadings is studied.
Mehdi Mohammadimehr   +2 more
doaj   +1 more source

Nonlinear free vibration of rectangular plates reinforced with 3D graphene foam: Approximate analytical solution

open access: yesResults in Physics, 2020
This paper investigates nonlinear free vibration of three-dimensional graphene foam skeleton reinforced rectangular plates. The three-dimensional graphene foam skeleton can distribute in different patterns along the thickness direction of the plate ...
Mei Wen Teng, Yan Qing Wang
doaj   +1 more source

Analysis of Electromagnetic Effects on Vibration of Functionally Graded GPLs Reinforced Piezoelectromagnetic Plates on an Elastic Substrate

open access: yesCrystals, 2022
A new nanocomposite piezoelectromagnetic plate model is developed for studying free vibration based on a refined shear deformation theory (RDPT). The present model is composed of piezoelectromagnetic material reinforced with functionally graded graphene ...
Mohammed Sobhy, F. H. H. Al Mukahal
doaj   +1 more source

Influence of Hygrothermal Environment and FG Material on Natural Frequency and Parametric Instability of Plates [PDF]

open access: yesMechanics of Advanced Composite Structures, 2020
In this article, vibration characteristics and the parametric instability of functionally graded material (FGM) plates with cyclic loading in a hygrothermal field are discussed. The plate element is modeled in a finite element by applying the third-order
Ramu Inala
doaj   +1 more source

On Field Theoretic Generalizations of a Poisson Algebra [PDF]

open access: yes, 1997
A few generalizations of a Poisson algebra to field theory canonically formulated in terms of the polymomentum variables are discussed. A graded Poisson bracket on differential forms and an $(n+1)$-ary bracket on functions are considered.
Beig   +22 more
core   +3 more sources

Analytical solution for free vibration analysis of GPL-RP beam integrated with piezoelectric layers

open access: yesVietnam Journal of Mechanics, 2022
This report presents an analytical approach to the natural frequency analysis of a porous beam consisting of a host porous layer reinforced with graphene platelets (GPLs), namely GPL-reinforced porous core, and two piezoelectric outer layers.
Tran Quang Hung   +2 more
doaj   +1 more source

A Time Finite Element Method Based on the Differential Quadrature Rule and Hamilton’s Variational Principle

open access: yesApplied Sciences, 2017
An accurate and efficient Differential Quadrature Time Finite Element Method (DQTFEM) was proposed in this paper to solve structural dynamic ordinary differential equations.
Yufeng Xing, Mingbo Qin, Jing Guo
doaj   +1 more source

Variational Integrators in Holonomic Mechanics

open access: yesMathematics, 2020
Variational integrators for dynamic systems with holonomic constraints are proposed based on Hamilton’s principle. The variational principle is discretized by approximating the generalized coordinates and Lagrange multipliers by Lagrange polynomials, by ...
Shumin Man, Qiang Gao, Wanxie Zhong
doaj   +1 more source

Orphan status, school attendance, and relationship to household head in Nigeria

open access: yesDemographic Research, 2017
Background: This study addresses the important issue of whether extended family networks can meet the educational needs of orphans in Nigeria. The theory behind this paper is based on Hamilton's rule, which holds that individuals are less altruistic ...
Aramide Kazeem, Leif Jensen
doaj   +1 more source

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