This paper presents the Finite Element Analysis of the frontal rails of a passenger car. Front rails will connect between Front bumper and Dash Toe pan. They are one of the structural members which will absorb high energies in frontal impact, so that impact energy won't transmit to driver/passengers. A rigid barrier is modeled to collide with the left frontal rail. The rail is assigned with steel material. After providing the necessary interactions and performing meshing, the whole model is run

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... for dynamic explicit code using ABAQUS 6.11 PR3. The graph results for Artificial Strain Energy, Kinetic Energy, Internal Energy and Total Energy are obtained and are compared with that of standard square tube. It was found that Internal Energy increased with time, Kinetic Energy decreased with time and Total Energy of the system remained the same. Then the specific energy absorption (SEA) is calculated using the same analysis for steel and aluminium for two different velocities i.e. at 20 mph and 30 mph. As a part of energy absorbing criterion, SEA of aluminium was better at both impact velocities.