Results 21 to 30 of about 803,659 (218)

Bending and free vibration of functionally graded beams using various higher-order shear deformation beam theories [PDF]

open access: yes, 2012
In this paper, various higher-order shear deformation beam theories for bending and free vibration of functionally graded beams are developed. The developed theories account for higher-order variation of transverse shear strain through the depth of the ...
Thai, Huu-Tai, Vo, Thuc
core   +1 more source

Modal Perturbation Method for the Dynamic Characteristics of Timoshenko Beams

open access: yesShock and Vibration, 2005
Timoshenko beams have been widely used in structural and mechanical systems. Under dynamic loading, the analytical solution of a Timoshenko beam is often difficult to obtain due to the complexity involved in the equation of motion. In this paper, a modal
Menglin Lou, Qiuhua Duan, Genda Chen
doaj   +1 more source

Elastic instability and free vibration analyses of axially functionally graded Timoshenko beams with variable cross-section [PDF]

open access: yesJournal of Structural and Construction Engineering, 2020
In this paper, the critical buckling loads and natural frequencies of axially functionally graded non-prismatic Timoshenko beam with different boundary conditions are acquired using the Finite Difference Method (FDM).
Masoumeh Soltani   +2 more
doaj   +1 more source

Further insights into the Timoshenko-Ehrenfest beam theory [PDF]

open access: yes, 2022
In this paper, the theory of a Timoshenko-Ehrenfest beam is revisited and given a new perspective with particular emphasis on the relative significances of the parameters underlying the theory.
Banerjee, J.R.   +3 more
core   +1 more source

Dynamic Analysis of a Timoshenko Beam Subjected to Moving Concentrated Forces Using the Finite Element Method

open access: yesShock and Vibration, 2007
This paper presents finite element formulations for an elastic Timoshenko beam subjected to moving concentrated forces. The results obtained by the present method are compared with those obtained by the assumed mode method published in the existing ...
Ping Lou, Gong-lian Dai, Qing-yuan Zeng
doaj   +1 more source

Vibration of Piezoelectric Nanowires Including Surface Effects [PDF]

open access: yesJournal of Nanostructures, 2014
In this paper, surface and piezoelectric effects on the vibration behavior of nanowires (NWs) are investigated by using a Timoshenko beam model. The electric field equations and the governing equations of motion for the piezoelectric NWs are derived with
R. Ansari   +3 more
doaj   +1 more source

Effect of piezoelectric patch on natural frequencies of Timoshenko beam made of functionally graded material

open access: yesMaterials Research Express, 2020
The present paper addresses developing the Dynamic Stiffness Method (DSM) for natural frequency analysis of functionally graded beam with piezoelectric patch based on the Timoshenko beam theory and power law of material grading.
Nguyen Tien Khiem   +2 more
doaj   +1 more source

Macaulay's Method for a Timoshenko Beam [PDF]

open access: yesInternational Journal of Mechanical Engineering Education, 2007
The Macaulay bracket notation is familiar to many engineers for the deflection analysis of a Euler–Bernoulli beam subject to multiple or discontinuous loads. An expression for the internal bending moment, and hence curvature, is valid at all locations along the beam, and the deflection curve can be calculated by integrating twice with respect to the ...
openaire   +1 more source

Dynamic Analysis of a Timoshenko Beam Subjected to an Accelerating Mass Using Spectral Element Method

open access: yesShock and Vibration, 2014
This paper presents formulations for a Timoshenko beam subjected to an accelerating mass using spectral element method in time domain (TSEM). Vertical displacement and bending rotation of the beam were interpolated by Lagrange polynomials supported on ...
Guangsong Chen, Linfang Qian, Qiang Yin
doaj   +1 more source

Static and free vibration of axially loaded functionally graded beams based on the first-order shear deformation theory [PDF]

open access: yes, 2013
The first-order shear deformation beam theory for static and free vibration of axially loaded rectangular functionally graded beams is developed. In this theory, the improved transverse shear stiffness is derived from the in-plane stress and equilibrium ...
Thai, Huu-Tai   +2 more
core   +1 more source

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