Ultimate strength of aluminium alloy outstands in compression: experiments and simplified analysis
作者： Odd S. Hopperstad , Magnus Langseth , Tore Tryland
DOI: 10.1016/S0263-8231(99)00013-0
关键词: Structural engineering 、 Ultimate tensile strength 、 Cruciform 、 Finite element method 、 Buckling 、 Aluminium 、 Aluminium alloy 、 Compression (physics) 、 Engineering 、 Alloy
摘要: Abstract An experimental investigation was undertaken to study the stability and ultimate strength of aluminium alloy outstands. In tests, thin-walled cruciform extrusions were stressed into post-buckling range in axial compression. The local buckling behaviour flanges a section is same as that an outstand, i.e. plate element which free along one unloaded edge simply supported other. Two tempers AA6082 with significantly different stress–strain curves tested for five b / t ratios. strengths compared theoretical predictions, using classical Stowell theory plastic combination effective width concept, formulae recommended literature.
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