Study on postbuckling of axial compressed elastoplastic functionally graded cylindrical shells

被引：12
作者：
Xu, Guanghui [1 ,2 ]
Huang, Huaiwei [1 ]
Han, Qiang [1 ]
机构：
[1] South China Univ Technol, Sch Civil Engn & Transportat, Guangzhou 510640, Guangdong, Peoples R China
[2] Guangzhou Inst Measuring & Testing Technol, Guangzhou, Guangdong, Peoples R China
来源：
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2018年 / 25卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Functionally graded materials; cylindrical shells; nonlinearity; elastoplastic; postbuckling; BUCKLING ANALYSIS; CIRCULAR PLATES; CRACK-GROWTH; BEHAVIOR; VIBRATION; CYLINDERS;
D O I：
10.1080/15376494.2017.1308589
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Postbuckling of plates and shells is an important and cumbersome problem in the structural stability field. Presently, postbuckling behaviors of elastoplastic functionally graded cylindrical shells are investigated by a numerical simulation. The elastoplastic material properties are assumed to be of a multilinear hardening type, according to the constituent distributions, and are modeled using the laminate method. The Riks algorithm is used to obtain the equilibrium path. The postbuckling deformation and stain history of elastoplastic functionally graded cylindrical shells are investigated and various effects of the shell thickness and the constituent distributions are discussed. The results show material unloading effects in the postbuckling state.
引用
收藏
页码：820 / 828
页数：9
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