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.Vibration of nonlocal perforated nanobeams with general boundary conditions
Faculty
Engineering
Year:
2020
Type of Publication:
ZU Hosted
Pages:
Authors:
Mohammed Abdelmoniem Mohamed Eltaher
Staff Zu Site
Abstract In Staff Site
Journal:
Smart Structures and Systems Techno-Press
Volume:
Keywords :
.Vibration , nonlocal perforated nanobeams with general
Abstract:
This article presents a comprehensive model to investigate a free vibration and resonance frequencies of nanostructure perforated beam element as nano-resonator. Nano-scale size dependency of regular square perforated beam is considered by using nonlocal differential form of Eringen constitutive equation. Equivalent mass, inertia, bending and shear rigidities of perforated beam structure are developed. Kinematic displacement assumptions of both Timoshenko and Euler-Bernoulli are assumed to consider thick and thin beams, respectively. So, this model considers the effect of shear on natural frequencies of perforated nanobeams. Equations of motion for local and nonlocal elastic beam are derived. After that, analytical solutions of frequency equations are deduced as function of nonlocal and perforation parameters. The proposed model is validated and verified with previous works. Parametric studies are performed to illustrate the influence of a long-range atomic interaction, hole perforation size, number of rows of holes and boundary conditions on fundamental frequencies of perforated nanobeams. The proposed model is supportive in designing and production of nanobeam resonator used in nano electromechanical systems NEMS.
Author Related Publications
Mohammed Abdelmoniem Mohamed Eltaher , "Vibrations and stress analysis of rotating perforated beams by using finite elements method", Techno-Press, Ltd., 2021
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Mohammed Abdelmoniem Mohamed Eltaher , "Free vibration of porous FG nonlocal modified couple nanobeams via a modified porosity model", Techno press, 2021
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Mohammed Abdelmoniem Mohamed Eltaher , "Vibration of nonlinear graduation of nano-Timoshenko beam considering the neutral axis position", ScienceDirect, 2014
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Mohammed Abdelmoniem Mohamed Eltaher , "Surface and thermal load effects on the buckling of curved nanowires", Sciencedirect, 2014
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Mohammed Abdelmoniem Mohamed Eltaher , "Modeling of viscoelastic contact-impact problems", journal homepage: www.elsevier.com/locate/apm, 2009
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Department Related Publications
Ola Ragab Abdou Mohamed, "Analysis of Composite Plates Using Moving Least Squares Differential Quadrature Method", Science Direct, 2014
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Ola Ragab Abdou Mohamed, "Efficient Quadrature Solution for Composite Plate Problems", medwelljournals, 2014
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Rasha Ibrahiem Saleh Mohamed, "Generalized extended method for solution of nonlinear diffusion equations", مجلة الهندسة والعلوم التطبيقية, 2014
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Mohamed Mohamed Ali Mohamed Saied, "Three Resultant Applications In Surface Modeling For Computer Graphics", Second National Conference of Mathematics, Cairo 6-11 April 1996, 1996
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Ahmed Saad Rashed Rashed Elsahar, "Similarity Analysis of Mass and Heat Transfer of FHD Steady Flow of Nanofluid Incorporating Magnetite Nanoparticles (Fe3O4)", East African Scholars Publisher, Kenya, 2020
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