| As a structural material, aluminum alloy has characteristics of lightweight, high-strength, uncorruptness, convenient for maintenance and assembly. It fits the requirements of modern engineering structures to long-span, lightweight and high-durability. Researches in aluminum alloy structure began in1970s in China. A design code for aluminum alloy structures has been published. Those researches will boost the application of aluminum alloy structure in China.Although many researches on aluminum alloy structures have been carried out in China, but the cross section shapes studied are mainly the circular tube, H and channel steel etc.. The research on aluminum alloy structural components with irregularly shaped sections is still lack. On the other hand, current design codes on thin-walled structures have provided design formula for local buckling and global buckling. The warping buckling is lacking systematic research.The experimental and numerical investigations on buckling behaviors of aluminum alloy components with different irregularly shaped sections were carried out in this paper. The buckling load carrying capacity obtained through experiments, numerical simulations, and equations described in the design code were compared.(1)Results obtained through experiments and numerical simulations in good agreement, which shows the validation of the numerical model. And the validated FEM model will be used for parametric analysis of buckling behavior of irregularly shaped aluminum alloy structural component.(2)Equations in the design code do not include effects of the buckling type and need to be improved further. |
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