Nonlinear vibration of edged cracked FGM beams using differential quadrature method

被引：0
|
作者：
KITIPORNCHAI Sritawat [1 ]
ALAM Firoz [2 ]
机构：
[1] Department of Building and Construction,City University of Hong Kong
[2] School of Aerospace,Mechanical and Manufacturing Engineering,RMIT University
来源：
Science China(Physics,Mechanics & Astronomy) | 2012年 / Mechanics & Astronomy)2012卷 / 11期
基金：
中央高校基本科研业务费专项资金资助; 中国国家自然科学基金;
关键词：
functionally graded materials(FGMs); Timoshenko beam; edge crack; nonlinear vibration; DQ method;
D O I：
暂无
中图分类号：
O346.1 [断裂理论];
学科分类号：
摘要：
This paper investigated the nonlinear vibration of functionally graded beams containing an open edge crack based on Timoshenko beam theory.The cracked section is modeled by a massless elastic rotational spring.It is assumed that material properties follow exponential distributions through the beam thickness.The differential quadrature(DQ) method is employed to discretize the nonlinear governing equations which are then solved by a direct iterative method to obtain the nonlinear vibration frequencies of beams with different boundary conditions.The effects of the material gradient,crack depth and boundary conditions on nonlinear free vibration characteristics of the cracked FGM beams are studied in detail.
引用
收藏
页码：2114 / 2121
页数：8
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