Results 181 to 190 of about 1,820 (220)
Some of the next articles are maybe not open access.
Linear and nonlinear elastic analysis of closely spaced strip foundations using Pasternak model
Frontiers of Structural and Civil Engineering, 2016In this study, an attempt is made to determine the interaction effect of two closely spaced strip footings using Pasternak model. The study considers small strain problem and has been performed using linear as well as nonlinear elastic analysis to determine the interaction effect of two nearby strip footings.
Priyanka Ghosh, S. Rajesh, J. Sai Chand
openaire +1 more source
Composite Structures, 2011
Abstract In this study, the mechanical buckling of functionally graded material cylindrical shell that is embedded in an outer elastic medium and subjected to combined axial and radial compressive loads is investigated. The material properties are assumed to vary smoothly through the shell thickness according to a power law distribution of the volume
E. Bagherizadeh, Y. Kiani, M.R. Eslami
openaire +1 more source
Abstract In this study, the mechanical buckling of functionally graded material cylindrical shell that is embedded in an outer elastic medium and subjected to combined axial and radial compressive loads is investigated. The material properties are assumed to vary smoothly through the shell thickness according to a power law distribution of the volume
E. Bagherizadeh, Y. Kiani, M.R. Eslami
openaire +1 more source
Vibrations of an Euler-Bernoulli Nanobeam on a Winkler/Pasternak-Type Elastic Foundation
2018 IEEE 13th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2018A non-local Euler-Bernoulli nanobeam theory is used to calculate free vibrations for a beam resting on a Winkler/Pasternak-type elastic foundation. On using Hamilton's Principle, the nonlinear equation of motion, which includes terms for stretching of the neutral axis, is derived. The Adomian modified decomposition method is applied to solve the fourth-
Desmond Adair +3 more
openaire +1 more source
Large Deflection of a Rectangular Plate Resting on a Pasternak-Type Elastic Foundation
Journal of Applied Mechanics, 1977The problem of large deflection of a rectangular plate resting on a Pasternak-type foundation and subjected to a uniform lateral load has been investigated by utilizing the linearized equation of plates due to H. M. Berger. The solutions derived and based on the effect of the two base parameters have been carried to practical conclusions by presenting ...
openaire +1 more source
Composite Structures, 2008
Abstract Exact solutions for functionally graded thick plates are presented based on the three-dimensional theory of elasticity. The plate is assumed isotropic at any point, while material properties to vary exponentially through the thickness. The system of governing partial differential equations is reduced to an ordinary one about the thickness ...
Z.Y. Huang, C.F. Lü, W.Q. Chen
openaire +1 more source
Abstract Exact solutions for functionally graded thick plates are presented based on the three-dimensional theory of elasticity. The plate is assumed isotropic at any point, while material properties to vary exponentially through the thickness. The system of governing partial differential equations is reduced to an ordinary one about the thickness ...
Z.Y. Huang, C.F. Lü, W.Q. Chen
openaire +1 more source
Vibration Analysis of Functionally Graded Timoshenko Beams on Winkler–Pasternak Elastic Foundation
Iranian Journal of Science and Technology, Transactions of Civil Engineering, 2019This paper aims to analyze dynamic response of axially functionally graded (FG) Timoshenko beams on Winkler–Pasternak elastic foundation. Spring constant and material inhomogeneity are used as research parameters in the dynamic analysis. In this study, ODEs in Laplace domain are calculated by using complementary functions method.
openaire +1 more source
Inverse Problems in Science and Engineering, 2017
AbstractAs a first attempt, a mix of differential quadrature (DQ) and simplex (S) method for the Pasternak elastic foundation parameters estimation of beams using simulated frequencies is presented. The method is applied for the parameters estimation of functionally graded (FG) beams.
A. Khalili, Ali R. Vosoughi
openaire +1 more source
AbstractAs a first attempt, a mix of differential quadrature (DQ) and simplex (S) method for the Pasternak elastic foundation parameters estimation of beams using simulated frequencies is presented. The method is applied for the parameters estimation of functionally graded (FG) beams.
A. Khalili, Ali R. Vosoughi
openaire +1 more source
Volume 3: Pipeline and Riser Technology, 2009
This paper discusses the use of three analytical models for the SCR-soil interaction analysis. Analytical derivations for Winkler, Pasternak and Kerr models are presented. The effects of the adopted model on displacements and stresses near the riser touchdown point are addressed. Comparisons with the results from a continuous soil model calculated with
Persio Leister de Almeida Barros +3 more
openaire +1 more source
This paper discusses the use of three analytical models for the SCR-soil interaction analysis. Analytical derivations for Winkler, Pasternak and Kerr models are presented. The effects of the adopted model on displacements and stresses near the riser touchdown point are addressed. Comparisons with the results from a continuous soil model calculated with
Persio Leister de Almeida Barros +3 more
openaire +1 more source
Smart Materials and Structures, 2016
In this study, free vibration analysis of magneto-electro-thermo-elastic (METE) nanobeams resting on a Pasternak foundation is investigated based on nonlocal theory and Timoshenko beam theory. Coupling effects between electric, magnetic, mechanical and thermal loading are considered to derive the equations of motion and distribution of electrical ...
A A Jandaghian, O Rahmani
openaire +1 more source
In this study, free vibration analysis of magneto-electro-thermo-elastic (METE) nanobeams resting on a Pasternak foundation is investigated based on nonlocal theory and Timoshenko beam theory. Coupling effects between electric, magnetic, mechanical and thermal loading are considered to derive the equations of motion and distribution of electrical ...
A A Jandaghian, O Rahmani
openaire +1 more source
Journal of Sound and Vibration, 2016
Abstract Geometrically nonlinear free and forced vibrations of damaged high order shear deformable beams resting on a nonlinear Pasternak foundation are investigated in this paper. Equations of motion are derived for the beam which is under subjected combined action of arbitrarily distributed or concentrated transverse loading as well as axial ...
Vladimir Stojanović, Marko D. Petković
openaire +1 more source
Abstract Geometrically nonlinear free and forced vibrations of damaged high order shear deformable beams resting on a nonlinear Pasternak foundation are investigated in this paper. Equations of motion are derived for the beam which is under subjected combined action of arbitrarily distributed or concentrated transverse loading as well as axial ...
Vladimir Stojanović, Marko D. Petković
openaire +1 more source