Results 161 to 170 of about 18,895 (218)

Circular plates on Pasternak elastic foundations

International Journal for Numerical and Analytical Methods in Geomechanics, 1987
AbstractThis study deals with the geometrically nonlinear axisymmetric static and transient response of cylindrically orthotropic thin circular plates resting on Pasternak elastic foundations subjected to uniformly distributed loads. Clamped and simply‐supported plates with radially movable and immovable edges have been considered.
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Energy-based dynamic parameter identification for Pasternak foundation model

Earthquake Engineering and Engineering Vibration, 2021
Parameter identification of Pasternak foundation models (PFM) is never satisfactory, which discourages the application and popularization of PFM. In the present study, an energy-based model to predict the dynamic foundation coefficients was proposed using the vibration kinetic energy and potential energy of a Pasternak foundation-rigid plate system. On
Wang-Xi Zhang, Wei-Lei Lv, Jin-Yi Zhang, Xiong Wang, Hyeon-Jong Hwang, Wei-Jian Yi   +5 more
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Free Vibrations of Beams on Viscoelastic Pasternak Foundations

Applied Mechanics and Materials, 2015
This paper investigates free transverse vibrations of finite Euler–Bernoulli beams resting on viscoelastic Pasternak foundations. The differential quadrature methods (DQ) are applied directly to the governing equations of the free vibrations. Under the simple supported boundary condition, the natural frequencies of the transverse vibrations are ...
Li Peng, Ying Wang
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Warping Stresses in Concrete Pavements on Pasternak Foundation

Journal of Transportation Engineering, 1993
This paper develops a solution of warping stresses in concrete pavement slabs resting on a Pasternak foundation. The solution is derived using the classical thin‐plate theory. Warping stresses in a slab of length A and width B is obtained by superposing the solution of a slab with length A and infinite width and that of a slab with width B and infinite
Shi, X.P., Fwa, T.F., Tan, S.A.
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Ultimate Carrying Capacity of Elastic-Plastic Plates on a Pasternak Foundation

Journal of Applied Mechanics, 2014
In the present work, the problem of an infinite elastic perfectly plastic plate under axisymmetrical loading conditions resting on a bilateral Pasternak elastic foundation is considered. The plate is assumed thin, thus making it possible to neglect the shear deformation according to the classical Kirchhoff theory. Yielding is governed by the Johansen's
LANZONI, Luca, RADI, Enrico, NOBILI, Andrea   +2 more
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Axisymmetric Buckling of Reddy Circular Plates on Pasternak Foundation

Journal of Engineering Mechanics, 2001
Presented herein are the exact axisymmetric buckling solutions of Reddy circular plates on the Pasternak foundation and subjected to a uniform radial load. The boundary conditions of the circular plates covered in this study are (1) simply supported edges; (2) clamped edges; and (3) simply supported edges with elastic rotational restraints.
Wang, Chien Ming, Xiang, Y., Wang, Q.
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Rectangular Thick Plate with Free Edges on Pasternak Foundation

Journal of Engineering Mechanics, 1994
In this paper the work on the thick‐plate equations and their solution for the problem concerning the bending of a rectangular plate with four free edges resting on the Pasternak foundation are described. The basic equations are those obtained from Reissner's 1945 theory, and are modified to include the Pasternak foundation.
X. P. Shi, S. A. Tan, T. F. Fwa
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Buckling of Beams Supported by Pasternak Foundation

Journal of the Engineering Mechanics Division, 1973
The determination of buckling loads for infinitely long beams resting on a Pasternak (1954) foundation is considered. It is assumed that the onset of buckling takes place at neutral equilibrium. The effect of extending the foundation beyond the width of the beam is determined by comparing the results obtained for two- and three-dimensional foundations.
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Vibrations of continuous Timoshenko beams on Winkler-Pasternak foundations

Journal of Sound and Vibration, 1978
Abstract The dynamic analysis of continuous Timoshenko beams on Winkler-Pasternak foundations by means of the general dynamic slope-deflection equations is presented. A three-span continuous beam on a Winkler-Pasternak foundation subjected to free and forced vibrations is used to illustrate the application of the proposed method and to show the ...
Wang, T. M., Gagnon, L. W.
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Buckling and Vibration of Thick Laminates on Pasternak Foundations

Journal of Engineering Mechanics, 1996
This paper investigates buckling, free vibration, and vibration with initial in-plane loads for moderately thick, simply supported symmetric cross-ply rectangular laminates on Pasternak foundations. The total potential energy functional is derived based on the first-order shear deformation plate theory.
Xiang, Y, Kitipornchai, S, Liew, KM
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