نتایج جستجو برای: functionally graded material beam

تعداد نتایج: 542294  

Journal: :Curved and Layered Structures 2023

Abstract In this work, the state -space nonlocal strain gradient theory is used for vibration analysis of magneto thermo piezoelectric functionally graded material (FGM) nanobeam. An FGM constituent properties stated by using power law relations. The refined higher order beam and Hamilton’s principle have been to obtain motion equations. Besides, governing equations nanobeam are extracted devel...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 1998

2014
Joe Alexandersen Boyan S. Lazarov Ole Sigmund

The work applies topology optimisation to the design of functionally graded materials (FGMs) and materialinterfaces for thermomechanical problems. It is well known, that the mismatch in stiffness and thermal expansioncoefficient of two materials give rise to high stresses at the interface. One way to alleviate this is to use the conceptof FGMs [1]. The FGMs are here designed using t...

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...

Journal: :International Journal of Engineering, Science and Technology 2018

Journal: : 2021

The purpose of this study is to examine the vibration characteristics a rotating blade whose material distribution varies in spanwise direction. Formulations for functionally graded materials and beam structural models are carried out detail results displayed several figures tables which significant source information authors working area. Different parameters such as angular speed, radius hub,...

Ali i Ghorbanpour Aran Hassan Khademyzadeh, Mohammad Salari

In this paper a closed form solution for one-dimensional magnetothermoelastic problem in a functionally graded material (FGM) hollow sphere placed in a uniform magnetic field and temperature field subjected to an internal pressure is obtained using the theory of magnetothermoelasticity. Hyper-geometric functions are employed to solve the governing equation. The material properties through the g...

Journal: :Applied mechanics 2021

Tessellating a periodic unit cell of lattice material to fill design space in complex geometries has many challenges arising from their computer-aided (CAD) modeling intricacy. A solution this difficulty is the use trimmed micro-truss structures with conformal net. This paper presents novel algorithm for constructing net as wireframe one-dimensional line segments suitable Bravais cubic symmetri...

Journal: :Vietnam Journal of Mechanics 2023

This paper analyses free vibrations of framed nanostructures made Functionally Graded Material (FGM) based on the Nonlocal Elastic Theory (NET) and Dynamic Stiffness Method (DSM). FGM characteristics vary nonlinearly throughout height beam element. The NET considers nonlocal parameter that perfectly captured size effect nanostructures. However, makes paradoxes in bending vibration behaviour wit...

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