Abstract ▼ AI-Helper

In recent years, there has been a demand for fuel efficiency improvement technologies such as fuel consumption and lightweight new materials in response to exhaust gas regulations, by using CO2 regulation road maps of respective countries. Research and development of material, processing method, sha...

In recent years, there has been a demand for fuel efficiency improvement technologies such as fuel consumption and lightweight new materials in response to exhaust gas regulations, by using CO2 regulation road maps of respective countries. Research and development of material, processing method, shape, etc. have been actively carried out in order to lighten the impact bar which is a main component of automotive door module. The impact bar can be divided into an open type and a closed type depending on the cross-sectional shape of the impact bar. The open impact bar has a reduced cross-sectional volume as compared with the closed impact bar.
In this paper, for the design of the open cross-sectional shape satisfying the bending strength standard, the shape parameter is set to three basic shapes of U-shape, U-shape, and M-shape that can be pressed and three shapes with the ribs at the tip of each, Bending strength change was analyzed by FEA analysis. In addition, the bending strength test according to the analytical result was performed, and the analysis result and the experimental result were compared and analyzed, and it was confirmed that the impact bar of the U-shaped basic form is a shape that optimizes the strength and weight reduction.