POST-BUCKLING ANALYSIS ON CELLULAR STEEL PROFILE WITH TUBULAR FLANGES AXIALLY LOADED
Abstract
This work investigates the structural behavior of cellular metal profiles with tubular flanges axially loaded. The structural analysis aims to assess the load-carrying capacity of these profiles, as well as possible instabilities. Using numerical methods through ABAQUS software, 18 profiles with different geometric configurations were studied. Different strength classes for steel were also considered. The findings show that a thicker profile enhances resistance, on average, by 76,6%. Profiles with higher slenderness exhibit overall instability, whereas those with lower slenderness around the axis of greatest inertia show local instabilities. Furthermore, increasing the mechanical steel strength contributes to 21% gain, on average, in the profile's ultimate strength.
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References
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