Elastic Foundation
Mostrando 13-24 de 43 artigos, teses e dissertações.
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13. Assessment of Homotopy Perturbation Method for Study the Forced Nonlinear Vibration of Orthotropic Circular Plate on Elastic Foundation
Abstract In this paper the nonlinear forced vibration of an orthotropic circular plate resting on Winkler, Pasternak and nonlinear Winkler foundation is investigated. Plates with edges elastically restrained against rotation and inplane displacement are analyzed and the Von-Karman geometric nonlinear equations are employed. In this study it is assumed that t
Lat. Am. j. solids struct.. Publicado em: 2016-02
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14. DQ thermal buckling analysis of embedded curved carbon nanotubes based on nonlocal elasticity theory
Abstract To investigate the thermal buckling of curved carbon nanotubes (CCNTs) embedded in an elastic medium, nonlocal elasticity theory is employed in combination with the theory of thin curved beams. Differential quadrature (DQ) method is implemented to discretize the resulted governing equations. Solving these equations enables us to estimate the critica
Lat. Am. j. solids struct.. Publicado em: 2015-10
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15. Analysis of Continuous and Discontinuous Cases of a Contact Problem Using Analytical Method and FEM
Abstract In this paper, continuous and discontinuous cases of a contact problem for two elastic layers supported by a Winkler foundation are analyzed using both analytical method and finite element method. In the analyses, it is assumed that all surfaces are frictionless, and only compressive normal tractions can be transmitted through the contact areas. Mor
Lat. Am. j. solids struct.. Publicado em: 2015-09
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16. Closed-form elasticity solution for three-dimensional deformation of functionally graded micro/nano plates on elastic foundation
This paper addresses the static deformation of simply supported rectangular micro/nano plates made of functionally graded (FG) materials based on the three-dimensional nonlocal elasticity theory of Eringen. The plates are assumed to be simply supported and rested on a Winkler-Pasternak elastic foundation. Elasticity modulus is assumed to obey an exponential
Lat. Am. j. solids struct.. Publicado em: 2015-08
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17. Transverse Motions of Rectangular Plates Resting on Elastic Foundation and Under Concentrated Masses Moving at Varying Velocities
AbstractThis study concerns the dynamic characteristics of a prestressed isotropic, rectangular plate continuously supported by an elastic foundation and carrying accelerating mass M. Closed form solutions of the governing fourth order partial differential equations with variable and singular coefficients are presented. For the two-dimensional plate problem,
Lat. Am. j. solids struct.. Publicado em: 2015-07
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18. An Analytical Solution for Free Vibration of Elastically Restrained Timoshenko Beam on an Arbitrary Variable Winkler Foundation and Under Axial Load
Abstract Natural frequencies are important dynamic characteristics of a structure where they are required for the forced vibration analysis and solution of resonant response. Therefore, the exact solution to free vibration of elastically restrained Timoshenko beam on an arbitrary variable elastic foundation using Green Function is presented in this paper. An
Lat. Am. j. solids struct.. Publicado em: 2015
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19. Vibration of plate on foundation with four edges free by finite cosine integral transform method
The analytical solutions for the natural frequencies and mode shapes of the rectangular plate on foundation with four edges free is presented by using the finite cosine integral transform method. In the analysis procedure, the classical Kirchhoff rectangular plate is considered and the foundation is modelled as the Winkler elastic foundation. Because only ar
Lat. Am. j. solids struct.. Publicado em: 2014-10
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20. Flexural motions under moving concentrated masses of elastically supported rectangular plates resting on variable winkler elastic foundation
The flexural motions of elastically supported rectangular plates carrying moving masses and resting on variable Winkler elastic foundations is investigated in this work In order to solve the fourth order partial differential equation governing the problem, a technique based on separation of variables is used to reduce the governing fourth order partial diffe
Lat. Am. j. solids struct.. Publicado em: 2014
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21. Three dimensional vibration and bending analysis of carbon nanotubes embedded in elastic medium based on theory of elasticity
This paper studies free vibration and bending behavior of singlewalled carbon nanotubes (SWCNTs) embedded on elastic medium based on three-dimensional theory of elasticity. To accounting the size effect of carbon nanotubes, non-local theory is adopted to shell model. The nonlocal parameter is incorporated into all constitutive equations in three dimensions.
Lat. Am. j. solids struct.. Publicado em: 2014
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22. Three-dimensional compatible finite element stress analysis of spinning two-directional FGM annular plates and disks with load and elastic foundation non-uniformities
Three-dimensional bending and stress analyses of the rotating two-directional functionally graded annular/circular plates or disks have not been accomplished so far. This task is performed in the present paper, employing a finite element formulation with a C¹-continuity. Therefore, both transversely graded and radiallygraded plates may be analyzed as specia
Lat. Am. j. solids struct.. Publicado em: 2013-09
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23. Far-field dynamic behavior of a half-space under an inertial strip foundation subjected to a time-harmonic force
Recent research works demonstrated that the interaction between the loads and the carrying structure's boundary which is related to the inertia of the load is an influential factor on the dynamic response of the structure. Although effects of the inertia in moving loads were considered in many works, very few papers can be found on the inertial effects of th
Lat. Am. j. solids struct.. Publicado em: 2013-05
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24. Deflection profile analysis of beams on two-parameter elastic subgrade
A procedure involving spectral Galerkin and integral transformation methods has been developed and applied to treat the problem of the dynamic deflections of beam structure resting on bi-parametric elastic subgrade and subjected to travelling loads. The case of the response to moving constant loads of this slender member is first investigated and a closed fo
Lat. Am. j. solids struct.. Publicado em: 2013-03