نتایج جستجو برای: euler bernoulli and timoshenko theories

تعداد نتایج: 16843508  

Journal: :Continuum Mechanics and Thermodynamics 2022

Abstract In this study, the time-dependent mechanics of multilayered thick hyperelastic beams are investigated for first time using five different types shear deformation models modelling beam (i.e. Euler–Bernoulli, Timoshenko, third-order, trigonometric and exponential deformable models), together with von Kármán geometrical nonlinearity Mooney–Rivlin strain energy density. The laminated is as...

Journal: :Nauka i Tehnika 2021

The paper describes a technique for modelling and optimization of ring-shaped compound ultrasonic waveguides consisting two sequentially joined segments different materials by means finite elements method. possibility using such amplifying vibrations in amplitude has been justified the paper. advantage developed consists its realization standard engineering software, particularly COMSOL Multiph...

Journal: :Ultramicroscopy 2011
D Cheneler J Bowen S J Leigh C P Purssell D R Billson D A Hutchins M C L Ward

In this paper a new method of fabricating cylindrical resin microcantilevers using the Direct Digital Manufacturing (DDM) technique of Micro-stereolithography (MSL) is described. The method is rapid and commercially viable, allowing the fabrication of atomic force microscope (AFM) cantilevers which exhibit much larger spring constants than those currently commercial available. This allows for e...

Journal: :iranian journal of science and technology transactions of mechanical engineering 2015
r. ansari r. gholami

a nonlocal beam model based on the bernoulli–euler beam theory is presented to investigate the dynamic stability of embedded single-walled carbon nanotubes (swcnts) in thermal environment under combined static and periodic axial loads. the dynamic stability analysis is carried out by including the effects of small-scale parameter, temperature change and elastic medium. the equation of motion is...

Journal: : 2022

Analysis of the free and forced vibration responses beams is one most critical problems to be examined in design step these structural members. The finite-element method which solves boundary value can applied efficiently problems. In this study, natural frequency damped undamped transient analyses pinned-pinned are investigated. well-known software packages, ANSYS SAP2000, used. 2-D elastic be...

2015
Yun Sun Shi-Rong Li Romesh C. Batra

Buckling and post-buckling thermomechanical deformations of a functionally graded material (FGM) Timoshenko beam resting on a two-parameter nonlinear elastic foundation and subjected to only a temperature rise have been numerically investigated with the shooting method. The material properties are assumed to vary only in the thickness direction according to a power law function. Through-the-thi...

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