Axial compression tests and corresponding finite element analysis were conducted on the basis of material property tests. It was shown that the failure mode of long column with a low width-thickness ratio is global instability,while the failure mode of short column with a high width-thickness ratio is that small bending deformation appeared firstly at the center of the columm,then the deformation developed with the gradually increasing load and caused local buckling in the end. The results of finite element...
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