نتایج جستجو برای: plate theory

تعداد نتایج: 852040  

M Fakhraie, M.A Roudbari P Roodgar Saffari

Based on the third-order shear deformation theory (TSDT), this paper numerically investigates the natural frequencies and time response of three-layered annular plate with functionally graded materials (FGMs) sheet core and piezoelectric face sheets, under initial external electric voltage. The impressive material specifications of FGM core are assumed to vary continuously across the plate thic...

A. Tourki Samaei, Sh. Hosseini Hashemi

This paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. The characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal Mindlin plate. This theory is considering both the small length scale effects and transverse shear deformation ef...

A. Tourki Samaei, Sh. Hosseini Hashemi

This paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. The characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal Mindlin plate. This theory is considering both the small length scale effects and transverse shear deformation ef...

2013
Justin T. Webster Irena Lasiecka

The flutter phenomenon is the principal concern in the field of aeroelasticity. In this paper we address the fundamental questions of well-posedness and long-time behavior of the primary mathematical model for a fluttering plate in a panel configuration. Such a system is known as a nonlinear flow-plate interaction. The flow is described by a perturbed wave equation. The plate is modeled by Kirc...

Journal: :mechanics of advanced composite structures‎ 2015
sina fallahzadeh rastehkenar mohammad shariyat

in the current study, the effects of interactions of the moving loads and the attached mass-spring-damper systems of the composite plates on the resulting dynamic responses are investigated comprehensively, for the first time, using the classical plate theory. the solution of the coupled governing system of equations is accomplished through tracing the spatial variations using a navier-type sol...

Present paper is devoted to stress and deformation analyses of heated variable thickness functionally graded (FG) circular plate with clamped supported, embedded on a gradient elastic foundation and subjected to non-uniform transverse load. The plate is coupled by an elastic medium which is simulated as a Winkler- Pasternak foundation with gradient coefficients in the radial and circumferential...

2003
M. Rastgaar Aagaah M. Mahinfalah G. Nakhaie Jazar

In this paper, deformations of a laminated composite plate due to mechanical loads are presented. Third order shear deformation theory of plates, which is categorized in equivalent single layer theories, is used to derive linear dynamic equations of a rectangular multi-layered composite plate. Moreover, derivation of equations for FEM and numerical solutions for displacements and stress distrib...

2004
Jane Wang

The aerodynamic forces on a flat plate accelerating from rest at fixed incidence in twodimensional power-law flow are studied analytically and numerically. An inviscid approximation is made in which separation at the two plate edges is modeled by growing spiral vortex sheets, whose evolution is determined by the Birkhoff-Rott equation. A solution based on a similarity expansion is developed, va...

B. L. V. S. Gupta S. Gopalakrishnan S. Narendar T. J. Prasanna Kumar,

This paper presents the thermal vibration analysis of double-layer graphene sheet embedded in polymer elastic medium, using the plate theory and nonlocal continuum mechanics for small scale effects. The graphene is modeled based on continuum plate theory and the axial stress caused by the thermal effects is also considered. Nonlocal governing equations of motion for this double-layer graphene s...

2004
L. F. Qian R. C. Batra

An advantage of functionally graded materials (FGMs) over laminated composites is that material properties vary continuously in an FGM but are discontinuous across adjoining layers in laminated composites. Furthermore, in an FGM material, properties can be graded in all three directions which is more difficult to achieve in laminated composites. FGMs have been used for structural optimization, ...

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