Improvement Design of Vehicle’s Front Rails for Dynamic Impact

Frontal collision tests indicate that the energy absorbing components playing the main role of providing protection for the occupants during the crashing processing. The frontal rails are the main components to absorb energy during collision. The position of the spot welding, beads, the cross section and thickness of the frontal rails are significantly facts that affect the energy absorption during impact. This paper is concentrated on improving the energy absorbing efficiency of the vehicle’s front rails during impact and giving better existing space of the passenger compartment after collision by using LS-DYNA. Utilize the improved model to enhance the exiting vehicles and compare the results to the frontal impact test.