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Weight optimization of axially functionally graded microbeams under buckling and vibration behaviors
Faculty
Engineering
Year:
2020
Type of Publication:
ZU Hosted
Pages:
213–234
Authors:
Mohammed Abdelmoniem Mohamed Eltaher
Staff Zu Site
Abstract In Staff Site
Journal:
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES Taylor & Francis Group
Volume:
51
Keywords :
Weight optimization , axially functionally graded microbeams
Abstract:
This article presents a study of multiobjective shape optimization of nonuniform microbeams made of functionally graded materials (FGMs). The goal is to discover the optimal shape functions and volume fraction distribution to maximize the critical buckling load and fundamental frequency while minimizing the mass and material cost of the microbeam. Based on Timoshenko beam theory with the modified couple stress theory, the static and dynamic behavior of axially functionally graded material nonuniform microbeam has been presented. Three types of shape functions are considered to control the variation of height and width along the beam length. The multiobjective particle swarm optimization (MOPSO) is applied to search for the Pareto optimal solutions. The shape functions parameters and types in addition to the FGM power index are considered as the design variables. Several cases are studied to demonstrate the multiobjective optimal shape design of axially functionally graded beams.
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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