Results 21 to 30 of about 3,502 (220)

Free vibration analysis of beams on a Pasternak foundation using Legendre polynomials and Rayleigh-Ritz method.

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2017
A free vibration of Euler-Bernoulli and Timoshenko beams resting on a two-parameter elastic foundation of Pasternak type has been investigated. Rayleigh-Ritz method is employed to deduce the governing equation and the Legendre polynomials multiplied by a
Rahbar-Ranji Ahmad , Shahbaztabar A.
doaj   +1 more source

A new analytic symplectic elasticityapproach for beams resting on Pasternak elastic foundations [PDF]

open access: yesJournal of Mechanics of Materials and Structures, 2010
Analytic solutions describing the stresses and displacements of beams on a Pasternak elastic foundation are presented using a symplectic method based on classical two-dimensional elasticity theory. Hamilton’s principle with a Legendre transformation is employed to derive the Hamiltonian dual equation, and separation of variables reduces the dual ...
C. F. Lü, C. Lim, W. A. Yao
openaire   +1 more source

Influence of Winkler-Pasternak Foundation on the Vibrational Behavior of Plates and Shells Reinforced by Agglomerated Carbon Nanotubes

open access: yesApplied Sciences, 2017
This paper aims to investigate the effect of the Winkler-Pasternak elastic foundation on the natural frequencies of Carbon Nanotube (CNT)-reinforced laminated composite plates and shells. The micromechanics of reinforcing CNT particles are described by a
Damjan Banić   +3 more
doaj   +1 more source

Thermo-Mechanical Vibration of Short Carbon Nanotubes Embedded in Pasternak Foundation Based on Nonlocal Elasticity Theory

open access: yesShock and Vibration, 2013
This study is concerned with the thermal vibration analysis of a short single-walled carbon nanotube embedded in an elastic medium based on nonlocal Timoshenko beam model.
B. Amirian, R. Hosseini-Ara, H. Moosavi
doaj   +1 more source

Free Vibration Analysis of Thick Annular Functionally Graded Plate Integrated with Piezo-Magneto-Electro-Elastic Layers in a Hygrothermal Environment

open access: yesApplied Sciences, 2022
The present work aims at investigating the hygrothermal effect on the natural frequencies of functionally graded (FG) annular plates integrated with piezo-magneto-electro-elastic layers resting on a Pasternak elastic foundation.
Faraz Kiarasi   +4 more
doaj   +1 more source

Higher order computational model considering the effects of transverse normal strain and 2-parameter elastic foundation for the bending of laminated panels

open access: yesApplied and Computational Mechanics, 2023
In this study, the authors analyze laminated composite panels supported on an elastic foundation considering the effects of transverse normal strain.
Sayyad A. S.   +2 more
doaj   +1 more source

Effect of a forced harmonic vibration pile to its adjacent pile in layered elastic soil with double-shear model [PDF]

open access: yes, 2014
A new model named double-shear model based on Pasternak foundation and Timoshenko beam theory is developed to evaluate the effect of a forced harmonic vibration pile to its adjacent pile in multilayered soil medium.
Lo, SH, Wang, J, Zhou, D
core   +1 more source

Vibration analysis of structural elements using differential quadrature method

open access: yesJournal of Advanced Research, 2013
The method of differential quadrature is employed to analyze the free vibration of a cracked cantilever beam resting on elastic foundation. The beam is made of a functionally graded material and rests on a Winkler–Pasternak foundation.
Mohamed Nassar   +2 more
doaj   +1 more source

Nonlocal Buckling and Vibration Analysis of Triple-Walled ZnO Piezoelectric Timoshenko Nano-beam Subjected to Magneto-Electro-Thermo-Mechanical Loadings [PDF]

open access: yesMechanics of Advanced Composite Structures, 2015
In this study, using the non-local elasticity theory, the buckling and vibration analysis of triple- walled ZnO piezoelectric Timoshenko beam on elastic Pasternak foundation is analytically investigated under magneto-electro-thermo-mechanical loadings ...
Mehdi Mohammadimehr   +2 more
doaj   +1 more source

Buckling Analysis of a Nanowire Lying on Winkler–Pasternak Elastic Foundation

open access: yesMechanics of Advanced Materials and Structures, 2014
This article studies the axial buckling of a nanowire (NW) lying on Winkler–Pasternak substrate medium with the Timoshenko beam theory. The surface effect of the NW is accounted for with the Steigmann–Ogden model. An explicit solution of the critical buckling force and its associated buckling mode are obtained analytically.
Tiankai Zhao, Jun Luo, Zhongmin Xiao
openaire   +2 more sources

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