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نمایش تعداد 1-10 از 14
Nonlocal modeling and buckling features of cracked nanobeams with von Karman nonlinearity
Buckling and postbuckling behaviors of cracked nanobeams made of single-crystalline nanomaterials are
investigated. The nonlocal elasticity theory is used to model the nonlocal interatomic effects on the beam’s performance accounting...
Thermal Vibration of Nanobeams Based on Exact Non-local Stress Theory
Free vibration of nanobeams including the effect of temperature change is investigated based
on the exact nonlocal stress theory. By applying the variational principle, the higher order
governing equation with the corresponding...
Postbuckling of functionally graded nanobeams based on modified couple stress theory under general beam theory
In this paper, analysis of shear deformable functionally graded (FG) nanobeams in postbuckling based on
modified couple stress theory is presented. The nonlinear behavior of postbuckling is defined based on
von-Karman geometric...
A MULTI-SPRING MODEL FOR BUCKLING ANALYSIS OF CRACKED TIMOSHENKO NANOBEAMS BASED ON MODIFIED COUPLE STRESS THEORY
This paper develops a cracked nanobeam model and presents buckling analysis of this developed model based on a modified couple stress theory. The Timoshenko beam theory and simply supported boundary conditions are considered. This nonclassical model...
Thermoelastic damping in a nonlocal nano-beam resonator as NEMS based on the type III of Green-Naghdi theory (with energy dissipation)
In this paper, thermoelastic damping in a nano-beam is studied employing the type III of
Green-Naghdi (GN) theory (with energy dissipation). The nano-beam is considered as a beamtype
of NEMS (nano-electro-mechanical systems). A...
A Modified Couple Stress Theory for Postbuckling Analysis of Timoshenko and Reddy-Levinson Single-Walled Carbon Nanobeams
investigated. The results indicate that the classical theory exaggerates the postbuckling
amplitude of the nanobeam and overstates the effect of shear deformation on the
postbuckling response of the nanobeam....
Nonlocal static analysis of a functionally graded material curved nanobeam
This article is concerned with the analytical solution for a curved nanobeam based on nonlocal elasticity. The structure is made of functionally graded (FG) material, and its property varies in accordance with a power law function through...
Application of Green’s function method to bending of stress gradient nanobeams
In this article, the deflection functions of nanobeams are found by employing the well-known Green’s function method. Based on Eringen’s nonlocal elasticity theory, stress gradient model is employed to formulate the problem. Different boundary...
Investigation of Dynamic Pull-in Instability in Clamped-Clamped Nanobeam-Based NEMS Devices under Intermolecular Surface Forces
In this current paper the Galerkin decomposition method is used to study the dynamic pull-in instability of clamped-clamped nanobeam-based N/MEMS switches under Casimir and van der Waals forces without electrostatic excitation. This model...