Results 161 to 170 of about 18,792 (221)

Hypar Shell on Pasternak Foundation

Journal of Engineering Mechanics, 1992
This paper deals with nonlinear static and dynamic analysis of hyperbolic paraboloid shells on Pasternak foundations. The governing differential equation of a hypar shell on a Pasternak foundation is reduced to that of a plate on a double elastic foundation.
D. N. Paliwal, S. N. Sinha, A. Ahmad
openaire   +1 more source

Natural frequencies of Timoshenko beams on pasternak foundations

Journal of Sound and Vibration, 1977
A study of the natural vibrations of a Timoshenko beam on a Pasternak-type foundation is presented. Frequency equations are derived for beams with different end restraints. A specific example is given to show the effects of rotary inertia, shear deformation, and foundation constants on the natural frequencies of the beam.
Wang, T. M., Stephens, J. E.
openaire   +2 more sources

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
openaire   +3 more sources

Shallow Spherical Shells on Pasternak Foundation

Journal of Engineering Mechanics, 1986
Static and dynamic analysis of fully clamped shallow spherical shells, subjected to uniform normal pressure on concave side and continuously supported on Pasternak foundation on the convex side, is made using Berger's and modified Berger's techniques.
D. N. Paliwal, S. N. Sinha, B. K. Choudhary   +2 more
openaire   +1 more source

Fractional modeling of Pasternak-type viscoelastic foundation

Mechanics of Time-Dependent Materials, 2016
In this paper, we propose a fractional Pasternak-type foundation model to characterize the time-dependent properties of the viscoelastic foundation. With varying fractional orders, the proposed model can govern the traditional Winkler model, Pasternak model, and viscoelastic model.
Wei Cai, Wen Chen, Wenxiang Xu
openaire   +1 more source

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.
openaire   +3 more sources

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.
openaire   +2 more sources

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
openaire   +1 more source

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.
openaire   +1 more source

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.
openaire   +1 more source