Ultimate strength of aluminium alloy outstands in compression: experiments and simplified analysis

被引：57

作者：

Hopperstad, OS ^{[1
]}

Langseth, M ^{[1
]}

Tryland, T ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Struct Engn, N-7491 Trondheim, Norway

来源：

THIN-WALLED STRUCTURES | 1999年 / 34卷 / 04期

关键词：

ultimate strength; plate buckling; aluminium alloys; experiments;

D O I：

10.1016/S0263-8231(99)00013-0

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An experimental investigation was undertaken to study the stability acid ultimate strength of aluminium alloy outstands. In the tests, thin-walled cruciform aluminium extrusions were stressed into the post-buckling range in axial compression. The local buckling behaviour of the flanges of a cruciform section is the same as that of an outstand, i.e. a plate element which is free along one unloaded edge and simply supported along the other. Two tempers of alloy AA6082 with significantly different stress-strain curves were tested for five bit ratios. The experimental ultimate strengths were compared with theoretical predictions, using the classical Stowell theory for plastic buckling in combination with the effective width concept, and with ultimate strength formulae recommended in the literature, (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：279 / 294

页数：16

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