文章基本信息

标题：Stability, Stress and Strain Analysis of Very Slender Pinned Thin-Walled Box Columns according to FEM, Euler and TSTh
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作者：Krzysztof Murawski ; Alexandre de Macêdo Wahrhaftig
期刊名称：American Journal of Biostatistics
印刷版ISSN：1948-9889
电子版ISSN：1948-9897
出版年度：2021
卷号：14
期号：2
页码：214-257
DOI：10.3844/ajeassp.2021.214.257
语种：English
出版社：Science Publications
摘要：In this study, a Finite Element Method (FEM) analysis is presented for the loss of stability in elastic states of very slender pinned without friction box-section thin-walled column axially compressed. From the FEM buckling linear stress analyses are determined the compressing critical forces for 36 cases, presented in tables and as the surface functions in dependence on the slenderness ratio and cross-section. Also are presented graphs obtained from the FEM post-buckling linear stress analysis for the elastic central line, slope, deflection and states of the stresses and strains of the box-section column 20×28×1×2500 mm made of steel, by the assumption that a maximal deflection equals the half of a side dimension. The obtained from the FEM computing function and surface graphs are compared and then discussed with graphs corresponding to Euler’s and Technical Stability Theory (TSTh) results. Finally are compared graphs of the stresses and strains of box-section thin-walled column 20×28×1×2500 obtained from FEM and TSTh, but under compressing critical force determined according to TSTh.
关键词：Stability;Elastic States;Slenderness;Thin-Walled;Box-Section;Rectangular;Column;Steel