Akademik Veri Yönetim Sistemi
7th International Mediterranean Science and Engineering Congress (IMSEC 2022), Antalya, Türkiye, 24 - 26 Ekim 2022, cilt.1, sa.212, ss.508-514
The energy absorbers located on the bumper in automobiles are the elements that absorb energy by deforming
in the event of an accident. In this study, 9 energy-absorbing parts with square, circular and hexagonal cross-sections, and
different geometries, which are dynamically subjected to impact forces in axial directions were analyzed using the finite
element method in the ANSYS/Explicit Dynamic module. Rotational thrust effect was observed by creating rotated designs
in crash boxes. Structures were exposed to direct loads, and they were compared in terms of material, geometry and
thickness on the simulations. The crash boxes were directly deformed to 100 mm with a rigid plate. DP600 steel, which is
frequently used in the automotive industry as a material in simulations, was defined for crash boxes. The shock absorber
combinations were evaluated with regard to the absorbed energy, the amount of deformation, the ease of production and
the cost. As a result, the highest absorbed energy value was found with 7.27 kJ in a 60° circular crashing box with 1 mm wall
thickness. It has been observed that this design absorbs 42.63% more energy than a square section structure and 28.89%
more energy than a hexagonal section structure at the same degree (60°).