نتایج جستجو برای: functionally graded material beam

تعداد نتایج: 542294  

This study investigated bending, buckling, and free vibration responses of hyperbolic shear deformable functionally graded (FG) higher order beams. The material properties of FG beams are varied through thickness according to power law distribution; here, the FG beam was made of aluminium/alumina, and the hyperbolic shear deformation theory was used to evaluate the effect of shear deformation i...

2008
Bin Shen Mija Hubler Glaucio H. Paulino Leslie J. Struble

A functionally graded (FG) material system is employed to make fiber use more efficient in a fiber reinforced cement composite (FRCC). This preliminary study demonstrates beam elements that were functionally graded fiber reinforced cement composite (FGFRCC) with four layers, each with a different fiber volume ratio. Fiber volume ratio was graded in accordance with its potential contribution to ...

In this research, the nonlinear buckling analysis of Functionally Graded (FG) nano-composite beam reinforced by various distributions of Boron Nitrid Nanotube (BNNT) is investigated under electro-thermodynamical loading with considering initial geometrical imperfection. The analysis is performed based on nonlocal elasticity theory and using the Finite Element Method (FEM). Various distribu...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
younes mohammadi assistant professor, department of industrial engineering and mechanical engineering, islamic azad university, qazvin, iran. keivan h safari assistant professor, department of industrial engineering and mechanical engineering, islamic azad university, qazvin, iran. mohsen rahmani phd student, department of industrial engineering and mechanical engineering, islamic azad university, qazvin, iran.

free vibration of sandwich plates with temperature dependent functionally graded (fg) face sheets in various thermal environments is investigated. the material properties of fg face sheets are assumed to be temperature-dependent and vary continuously through the thickness according to a power-law distribution in terms of the volume fractions of the constituents. also, the material properties of...

Journal: :journal of applied and computational mechanics 2014
jamal zare

the present research attempts to explain dynamic pull-in instability of functionally graded micro-cantilevers actuated by step dc voltage while the fringing-field effect is taken into account in the vibrational equation of motion. by employing modern asymptotic approach namely homotopy perturbation method with an auxiliary term, high-order frequency-amplitude relation is obtained, then the infl...

Journal: :journal of modern processes in manufacturing and production 0
javad jafari fesharaki department of mechanical engineering, najafabad branch, islamic azad university, najafabad, iran seyed ghasem madani department of mechanical engineering, faculty of engineering, university of kashan, kashan, iran sa’id golabi department of mechanical engineering, faculty of engineering, university of kashan, kashan, iran

this research develops thermo-elastic analysis of a functionally graded cylinder under thermo-mechanical loadings. heat conduction equation in cylindrical coordinate system is solved. thermal conductivity coefficient is graded along the radial direction. by considering a symmetric distribution of temperature, loading and boundary conditions, strain-displacement and stress-strain relations can b...

2011
M. Karami Khorramabadi R. Nezamabadi

This paper studies mechanical buckling of functionally graded beams subjected to axial compressive load that is simply supported at both ends lies on a continuous elastic foundation. The displacement field of beam is assumed based on EngesserTimoshenko beam theory. Applying the Hamilton's principle, the equilibrium equation is established. The influences of dimensionless geometrical parameter, ...

Journal: :Journal of the Illuminating Engineering Institute of Japan 2002

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 2020

2014
Hao Zuo Zhi-Bo Yang Xue-Feng Chen Yong Xie Xing-Wu Zhang Yue Liu

The application of B-spline wavelet on the interval (BSWI) finite element method for static, free vibration and buckling analysis in functionally graded (FG) beam is presented in this paper. The functionally graded material (FGM) is a new type of heterogeneous composite material with material properties varying continuously throughout the thickness direction according to power law form in terms...

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