نتایج جستجو برای: variable thickness plate

تعداد نتایج: 432930  

2016
Bernhard Steinberger Thorsten W. Becker

Article history: Received 19 April 2016 Received in revised form 28 July 2016 Accepted 1 August 2016 Available online xxxx The outermost layer of the solid Earth consists of relatively rigid plates whose horizontal motions are well described by the rules of plate tectonics. Yet, the thickness of these plates is poorly constrained, with different methods giving widely discrepant results. Here a ...

A.S Sayyad Y.M Ghugal,

In this paper a variationally consistent trigonometric shear deformation theory is presented for the free vibration of thick isotropic square and rectangular plate. In this displacement based theory, the in-plane displacement field uses sinusoidal function in terms of thickness coordinate to include the shear deformation effect. The cosine function in terms of thickness coordinate is used in tr...

A.R Shaterzadeh, R Rezae S Abolghasemi

This paper presents thermal buckling analysis of rectangular functionally graded plates (FG plates) with an eccentrically located elliptic cutout. The plate governing equations derived by the first order shear deformation theory (FSDT) and finite element formulation is developed to analyze the plate behavior subjected to a uniform temperature rise across plate thickness. It is assumed that the ...

2007
Lianxing Wen Don L. Anderson

Large-scale mantle convection, to first order, is a system driven by interior density anomalies, modulated by variable plate thickness and extreme theology variations at the top of the mantle. The rheological difference between oceanic and continental regions significantly influences the surface velocity. We apply a three-dimensional NewtonJan viscous flow model to explain the largescale presen...

2001
Jang Jay H. Kim

The paper analyzes the vertical penetration of a small object through a floating sea ice plate. The analysis takes into account the fact that the bending cracks reach only through part of the ice plate thickness and have a variable depth profile. The cracks are modeled according to the Rice-Levy nonlinear softening line spring model. The plate-crack interaction is characterized in terms of the ...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1979

2005
R. C. Batra J. Jin

We use the first-order shear deformation theory (FSDT) coupled with the finite element method (FEM) to study free vibrations of a functionally graded (FG) anisotropic rectangular plate with the objective of maximizing one of its first five natural frequencies. The following edge conditions are considered: (i) all edges clamped, (ii) all edges simply supported, (iii) two opposite edges clamped a...

2004
Y. F. Yao N. D. Sandham

Direct numerical simulationhas been carried out for turbulent  owovera rectangular trailing edge at aReynolds number of 1 £ £ 103 (based on the freestream quantities and the trailing-edge thickness) and ratio of boundarylayer displacement thickness to trailing-edge thickness close to unity. Two types of  ow control were studied: base transpiration and secondary splitter plate. Simulation of b...

2000
Z.-Q. Cheng R. C. Batra

A new solution in closed form is obtained for the thermomechanical deformations of an isotropic linear thermoelastic functionally graded elliptic plate rigidly clamped at the edges. The through-thickness variation of the volume fraction of the ceramic phase in a metal–ceramic plate is assumed to be given by a power-law type function. The effective material properties at a point are computed by ...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2015
m. m. soleymani m. a. hajabasi s. elahi mahani

in this paper, a rectangular sandwich plate with a constrained layer and an electrorheological (er) fluid core is investigated. the rectangular plate is covered an er fluid core and a constraining layer to improve the stability of the system. the two outer layers of the sandwich structure are elastic. the viscoelastic materials express the middle layer behavior under electric field and small st...

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