Crashworthiness Analysis of Horizontal and Vertical Elliptical Cross-Sectİonal Beams in Vehicle Doors


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Kumlu U., Hükümdar Ö., Kersin M., Akar M. A., Keskin A.

5th INTERNATIONAL PARIS CONGRESS ON APPLIED SCIENCES, Paris, Fransa, 4 - 08 Ağustos 2025, ss.38-49, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Paris
  • Basıldığı Ülke: Fransa
  • Sayfa Sayıları: ss.38-49
  • Çukurova Üniversitesi Adresli: Evet

Özet

Side impacts are among the most critical types of vehicle crashes due to the confined distance

between the door structure and the occupants, resulting in a high probability of injury. In

response to this, automotive engineers are focusing on innovative door beam designs that

enhance crash performance. This study investigates twelve different configurations of door

beams using two primary cross-sectional designs: horizontal elliptical (HE) and vertical

elliptical (VE). Beam designs were varied by angle (10°, 20°, 25°) and wall thickness (1.4 mm

and 1.8 mm), and all structures were modeled using AL5083-H116 material. Three-dimensional

modeling was performed using CATIA, and side collision simulations were conducted at 32

km/h using the ANSYS Explicit Dynamics module. Crashworthiness performances of beams

was evaluated based on Specific Energy Absorption (SEA), peak and plastic deformation, and

maximum reaction force. The lowest plastic deformation was observed in the AA25HE18

configuration with 46.6 mm, while the lowest reaction force, also observed in AA25HE14, was

20276 N. These results identify the AA25HE14 design as the most efficient configuration

providing excellent energy absorption while maintaining favorable structural integrity and

impact response.