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