Tests on Domestic 703 High-Strength Aluminum Alloy Angle Members in Axial Compression

Abstract:

In this paper， the tensile tests of 703 aluminum alloys were completed， and their mechanical properties and constitutive relations were obtained. Then， the tests of 24 domestic 703 high-strength axial pressure angle aluminum alloy members were performed， and the ultimate bearing capacity and failure mode of these members was analyzed. Next， a numerical analysis model was established and compared with the test data to verify the correctness of the numerical model. After that， a large number of numerical analyses were completed and the numerical model was used to comprehensively analyze the influence of slenderness ratio， section size， and other factors on the bearing capacity of the component. Finally， the stability coefficient calculated from the existing code formulas and the experimentally measured stability coefficient were compared. The results show that the Chinese "Aluminum Structure Design Code" can effectively calculate the overall stability bearing capacity of the 703 high-strength axial pressure angle aluminum alloy member.

Key words:703 aluminum alloy;angle aluminum in axial compression;flexural buckling;torsional-flexural buckling