Analysis of frontal bumper beam of automobile vehicle by using carbon fiber composite material

Abstract

The bumper is a structural member which is used to absorb the impact or sudden loads in the automobile vehicles, which are applied intentionally or unintentionally. The objective for the incorporation of the bumper is when the vehicle is suspended to sudden or impact loads by any collision, then it is used to absorb that impact energy and is helpful for the safety of the passengers as well as for the vehicle.In this present work, the displacement and stress analysis and design optimization of the automobile vehicle frontal bumper beam is achieved by designing eight different cross sections with the help of mechanical modeling based software Creo. The various cross-sections designed are (a) Open Hat section, (b) C section, (c) Rolled form section, (d) Open B section, (e) Close B section, (f) Hat close box section, (g) E section, (h) Rectangle section. The carbon fiber composite material is used for this purpose. To model these bumper beams, the profile used is flat with the curved angle. The designed sections are analyzed as per the national highway traffic safety administration, and federal motor vehicles safety standards regulations. The frontal perpendicular impact test is performed on the bumper beam at low-speed load with the help of finite element software HyperMesh. In the present work, the material used is carbon fiber composite.