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In the paper the analysis of an influence of buckling mode and load on energy absorption effectiveness of thin-walled frusta was carried out. The influence of factors such as wall angle α, wall thickness t, and frustum height H on the buckling mode and load and energy absorption was also analyzed. The analysis of influence was performed using Pearson's linear correlation method. A Finite Element (FE) model built of shell elements was applied and calculations were performed using ABAQUS commercial code. The Cowper-Symonds material model was taken into account. A two step analysis was carried out: buckling analysis in the first step, and nonlinear explicit dynamic analysis in the second step. IN the first step buckling loads and buckling modes were obtained. In the second step, force-shortening curves. The results obtained are compared on graphs and correlation matrix.
