| 任意薄壁构件弹性稳定的一个统一算法 |
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| 引用本文： | 王仕统,李汉刚.任意薄壁构件弹性稳定的一个统一算法[J].华南理工大学学报(自然科学版),1988(1). |
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| 作者姓名： | 王仕统 李汉刚 |
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| 作者单位： | 华南理工大学建筑工程系，香港大学土木系 博士研究生 |
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| 摘 要： | 本文对具有各种初始缺陷的任意薄壁杆的稳定问题,用有限单元法建立了统一理论。由此,柱的弯曲屈曲、梁的侧向屈曲、梁—柱稳定等问题均可归结为此理论的特例。用此理论编制的计算机程序,可以处理任意支承的薄壁杆:变截面梁、柱和压弯杆等的稳定问题。文中给出了若干算例,说明其精度。
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| 关 键 词： | 薄壁结构 弹性稳定(性) 梁—柱 任意横截面 初始缺陷 弯扭屈曲 |
A GENERAL ALGORITHM FOR ELASTIC STABILITY PROBLEM OF THIN-WALLED MEMBERS |
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| Wang Shitong and Li Hangang Dept.of Civil.Eng.,South China Univ.of Tech..A GENERAL ALGORITHM FOR ELASTIC STABILITY PROBLEM OF THIN-WALLED MEMBERS[J].Journal of South China University of Technology(Natural Science Edition),1988(1). |
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| Authors: | Wang Shitong and Li Hangang Deptof CivilEng South China Univof Tech |
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| Abstract: | In this paper,a general theory on stability problem is devel-oped by Finite Element Method(FEM).The theory is suitablefor arbitrary cross-section thin-walled members and all kinds ofinitial imperfections.The varied special stability problems,such asthe flexural buckling of column,the lateral buckling of beam andbeam-column stability,can be included in the theory.The com-puter program,that is worked out according to the theory,can beused to analyse many stability problems,for example,the stabilityof arbitrary supported thin-walled members,the variable crosssection beams,columns and beam-column members and so on.Somenumerical examples are given and results are compared with thosegiven by other methods to illustrate the accuracy of this theory. |
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| Keywords: | thin-walled structure elastic stability beamcolumn arbitrary cross-section initial imperfection torsionalflexural buckling |
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