Results 31 to 40 of about 111,009 (290)

A simple shear deformation theory for nonlocal beams [PDF]

open access: yes, 2018
In this paper, a simple beam theory accounting for shear deformation effects with one unknown is proposed for static bending and free vibration analysis of isotropic nanobeams.
Patel, Vipulkumar Ishvarbhai   +3 more
core   +2 more sources

Vibrational Energy Flow Analysis of Corrected Flexural Waves in Timoshenko Beam – Part I: Theory of an Energetic Model

open access: yesShock and Vibration, 2006
In this paper, an energy flow model is developed to analyze transverse vibration including the effects of rotatory inertia as well as shear distortion, which are very important in the Timoshenko beam transversely vibrating in the medium-to-high frequency
Young-Ho Park, Suk-Yoon Hong
doaj   +1 more source

Mode shape analysis of multiple cracked functionally graded beam-like structures by using dynamic stiffness method

open access: yesVietnam Journal of Mechanics, 2017
Mode shapes of multiple cracked beam-like structures made of Functionally Graded Material (FGM) are analyzed by using the dynamic stiffness method.
Tran Van Lien   +2 more
doaj   +1 more source

An exact dynamic stiffness matrix for a beam incorporating Rayleigh–Love and Timoshenko theories [PDF]

open access: yes, 2018
An exact dynamic stiffness matrix for a beam is developed by integrating the Rayleigh–Love theory for longitudinal vibration into the Timoshenko theory for bending vibration.
Ananthapuvirajah, A., Banerjee, J. R.
core   +1 more source

A Screw Theory of Timoshenko Beams

open access: yesJournal of Applied Mechanics, 2009
In this work, the classic theory of Timoshenko beams is revisited using screw theory. The theory of screws is familiar from robotics and the theory of mechanisms. A key feature of the screw theory is that translations and rotations are treated on an equal footing and here this means that bending, torsion, and extensions can all be considered together ...
J. M. Selig, Xilun Ding
openaire   +2 more sources

A modeling method for vibration analysis of cracked beam with arbitrary boundary condition

open access: yesJournal of Ocean Engineering and Science, 2018
This paper establishes a cracked Timoshenko beams model to investigate the vibration behavior based on the ultraspherical polynomials. Timoshenko beam theory is applied to model the free vibration analysis of the cracked beam and the numerical results ...
Kwanghun Kim   +4 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

Analytical solution of two-layer beam taking into account interlayer slip and shear deformation [PDF]

open access: yes, 2007
A mathematical model is proposed and its analytical solution derived for the analysis of the geometrically and materially linear two-layer beams with different material and geometric characteristics of an individual layer.
Goodman J. R.   +8 more
core   +2 more sources

On the valid frequency range of Timoshenko beam theory [PDF]

open access: yesJournal of Sound and Vibration, 2006
Abstract The frequency equation of Timoshenko beam theory factorises for hinged–hinged end conditions, leading to a first and second spectrum of natural frequencies; the latter is largely inaccurate and can be isolated and disregarded. For the majority of other end conditions, when the frequency equation does not factorise, one may think in terms of ...
Stephen, N.G., Puchegger, S.
openaire   +3 more sources

Study on the influence of above-crossing tunneling on the existing shield tunnels based on timoshenko beam

open access: yes矿业科学学报, 2021
Based on the modified Loganathan theory, the longitudinal displacement of an existing tunnel caused by the ground loss in the process of shield crossing was studied.
Wei Zheng, Jiang Yusheng
doaj   +1 more source

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