Free vibration of functionally graded porous cylindrical shell using a sinusoidal shear deformation theory

被引：233

作者：

Wang, Yuewu ^{[1
]}

Wu, Dafang ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China

来源：

AEROSPACE SCIENCE AND TECHNOLOGY | 2017年 / 66卷

基金：

中国国家自然科学基金;

关键词：

Functionally graded porous material; Cylindrical shell; Free vibration; Sinusoidal shear deformation theory; Rayleigh-Ritz method; BOUNDARY-CONDITIONS; SANDWICH BEAM; RING SUPPORT; PLATE-THEORY; FREQUENCIES; STABILITY; THICK; CORE; LOAD;

D O I：

10.1016/j.ast.2017.03.003

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The present study focuses on performing a free vibration analysis of a functionally graded (FG) porous cylindrical shell subject to different sets of immovable boundary conditions. It is assumed that the modulus of elasticity of the porous composite is graded in the thickness direction. The open-cell metal foam provides a typical mechanical feature to determine the relationship between coefficients of density and porosity. A sinusoidal shear deformation theory (SSDT) in conjunction with the Rayleigh-Ritz method is employed to derive the governing equations associated with the free vibration of the circular cylindrical shell. Two types of graded porosity distributions in the thickness direction are considered. The study investigates the effects of FG porosity, boundary conditions, and geometrical parameters on free vibration characteristics of the FG porous cylindrical shell. (C) 2017 Elsevier Masson SAS. All rights reserved.

引用

页码：83 / 91

页数：9

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