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When a car crash occurs, the probability that the collision will be oblique and not entirely frontal is high. In this
way, the current article evaluates by a finite element analysis, the crashworthiness performance of multicell struc-
tures subjected to oblique loads. In this sense, five multicell structures manufactured with 6063-T5 aluminum alloy
were designed and evaluated by an oblique compression test. During the analysis, special emphasis was placed on
determining the effect of the cross-section and the angle of incidence of the load (θ) on the energy absorption of the
structures. For this purpose, values of θ equal to 0°,5°,10° and 15° were analyzed. To guarantee a correct compari-
son between tubes, all the structures had the same mass equal to 0.80 kg. Then, adjustments to the thickness were
realized. In all cases, the most important indicators of impact resistance such as energy absorption (Ea), crushing
force efficiency (CFE), and mean force (Pm) were calculated. According to the results, the angle of incidence of
the load defined the plastic deformation mode of the structure. In this sense, a 47.75% decrease in the Pmax and
Pm was observed as the angle θ increased. Moreover, at the end of the study, the MC-02 profile presented the best
CFE with an average value of 0.74 at different loading angles. Thus, this structure could be considered as a baseline
among engineers and designers for the design of structures subjected to bending loads.
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