摘要
本文提出了一种适合于分析初弯曲板大挠度和后屈曲问题的有限元列式。基于总体的Largrange描述,导出了计及初弯曲效应的非线性分析有关公式。计算表明,本有限元方法对于上述两类问题分析,结果精确,具有工程上的广泛应用价值。
In this paper, based on the total Lagrangian description, an analytical procedure by the use of the FEM to analyse the large deflection bending and also the post-buckling of initially deflected paltes is presented. Comparasing with available theoretical results, it reveals that the present FEM analysis gives accruate results and may have optimal wide opplications.
出处
《上海力学》
CSCD
1998年第4期351-359,共9页
Chinese Quarterly Mechanics
关键词
初变形
薄板
大位移
后屈曲
initial deformation, large-deflection beding, post-buckling.
