نتایج جستجو برای: functionally graded materials

تعداد نتایج: 508583  

Journal: :international journal of advanced design and manufacturing technology 0
a. davar islamic azad university s. mohammad reza khalili k.n. toosi university of technology h. hadavinia kingston university, london, uk

free vibration of simply supported circular cylindrical shell made of functionally graded material (fgm) under internal pressure was investigated. the effective material properties are assumed to vary continuously along the thickness direction according to a volume fraction power law distribution. first order shear deformation theory based on love's first approximation theory was utilized in th...

Journal: :international journal of advanced design and manufacturing technology 0
saeed kamarian

this paper deals with volume fraction optimization of functionally graded (fg) beams resting on elastic foundation for maximizing the first natural frequency. the two-constituent functionally graded beam consists of ceramic and metal. these constituents are graded through the thickness of beam according to a generalized power-law distribution. one of the advantages of using generalized power- l...

Journal: :Journal of the Japan Society of Powder and Powder Metallurgy 2008

Vibration behavior of different types of porous functionally graded (FG) conical sandwich shells are investigated based on a modified high order sandwich shells theory for the first time. Sandwich shell includes FG face sheets covering a homogeneous core and the second one includes homogeneous face sheets and a FG core. Power law rule modified by considering two types of porosity distributions ...

H Ahmadi, K Foroutan

A semi-analytical method is used to study the effects of the multi vibration absorbers on the nonlinear functionally graded (FG) Euler-Bernoulli beam subjected to periodic load. The material properties of the beam are assumed to be continuously graded in the thickness direction. The governing equations of functionally graded beam are obtained based on the Hamilton's principle and these equation...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده مهندسی مکانیک 1392

در این پایان نامه راه حل نیمه تحلیلی برای بررسی رفتار ترموالاستیک و خزشی دیسک های دوار دارای تقارن محوری ساخته شده از مواد ساختار یافته منظم (functionally graded materials) ارائه می شود. برای این منظور، معادلات تعادل و سازگاری و تنش و کرنش حاکم بر رفتار خزشی اینگونه دیسک ها استخراج شده و سپس با استفاده از معادله ساختاری theta projection معادلات خزش برای دیسک های دوار ساخته شده از مواد ساختار یا...

Journal: :Diagnostyka 2021

1. Ramu I, Mohanty SC. Modal analysis of functionally graded material plates using finite element method. Procedia Materials Science. 2014; 6:460-467.‏. Google Scholar

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