Elastoplastic buckling of axially loaded functionally graded material cylindrical shells

被引：25

作者：

Huang, Huaiwei ^{[1
]}

Han, Qiang ^{[1
]}

机构：

[1] S China Univ Technol, Sch Civil Engn & Transportat, Guangzhou 510640, Guangdong, Peoples R China

来源：

COMPOSITE STRUCTURES | 2014年 / 117卷

关键词：

Functionally graded materials; Cylindrical shells; Elastoplastic; Nonlinearity; Buckling; PLATES; MODEL;

D O I：

10.1016/j.compstruct.2014.06.018

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, elastoplastic buckling behaviors of functionally graded material cylindrical shells under axial compression are investigated with Donnell shell theory and J(2) flow constitutive relation of functionally graded materials. The nonlinear material properties vary smoothly through the thickness, and a multi-linear hardening elastoplasticity is considered in the analysis. The buckling government equations are solved by Galerkin method, and the semi-analytical solution of the critical load is given. Numerical results from the present theory are derived by an iterative procedure. The theoretical elastoplastic critical loads are well verified by those of ABAQUS code, which includes both the material and geometrical nonlinearities. The elastic, elastoplastic, and plastic buckling regions of functionally graded cylindrical shells can be effectively distinguished through the present method, and various effects of the material nonlinearity, the dimensional parameters and the power law exponent are investigated. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：135 / 142

页数：8

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