Buckling and post-buckling analyses of composite cellular beams

This paper aims to investigate the buckling and post-buckling analyses of composite cellular beams. For this, numerical model is calibrated by experimental tests via analysis. A parametric study developed, considering six cross sections. each section, opening diameter web post length are varied. Regarding for symmetrical sections, it was concluded that end an important parameter in strength beams presents high slenderness. The smaller diameter, greater critical global shear. variation height beam had a little influence on larger diameters posts widths. Considering asymmetric verified did not happen first mode. In this scenario, local upper tee observed. With variation, there increase due fact with height, mode changed WPB, instead buckling. Finally, conservatism SCI P355 calculation recommendations, factor needs be revised.