Numerical study of dynamic buckling for plate and shell structures

被引：13
作者：
Liu, ZS [1 ]
Lee, HP [1 ]
Lu, C [1 ]
机构：
[1] Inst High Performance Comp, Singapore 117528, Singapore
来源：
STRUCTURAL ENGINEERING AND MECHANICS | 2005年 / 20卷 / 02期
关键词：
buckling time; dynamic buckling; dynamic buckling criteria; dynamic buckling load; plate and shell structure; finite element method;
D O I：
10.12989/sem.2005.20.2.241
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A numerical approach combining the finite element method with two different stability criteria namely the Budiansky and the phase-plane buckling criteria is used to study the dynamic buckling phenomena of plate and shell structures subjected to sudden applied loading. In the finite element analysis an explicit time integration scheme is used and the two criteria are implemented in the Finite Element analysis. The dynamic responses of the plate and shell structures have been investigated for different values of the plate and shell imperfection factors. The results indicate that the dynamic buckling time, which is normally considered in predicting elasto-plastic buckling behavior, should be taken into consideration with the buckling criteria for elastic buckling analysis of plate and shell structures. By selecting proper control variables and incorporating them with two dynamic buckling criteria, the unique dynamic buckling load can be obtained and the problems of ambiguity and contradiction of dynamic buckling load of plate and shell structure can be resolved.
引用
收藏
页码：241 / 257
页数：17
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