Published Paper Details:

An impact attenuator is a structure used to decelerate impacting vehicles gradually to a stop by gradually decelerating the racecar, the frame and driver are protected from significant deformation and injury. One of the types of energy absorber, having relatively limited focus in various available literatures was the proper dimensioned honeycomb impact attenuator structure as per FSAE regulations. Such a structure is essential to absorb maximum amount of energy with the required acceptable deceleration level. FSAE specifies that each car in operation must have an attenuator that meets specifications and testing criteria Impact Attenuator when mounted on the Front Bulkhead, would give an average vehicle deceleration of less than 20g while hitting a non-yielding surface. The data requires the vehicle is traveling at 7 m/s during the impact with a total mass of 300 kg. The peak deceleration during the impact must be under 40g. Aim of this paper is to compare computer simulated result of different material honeycomb structure & Baseline model that simulation is carried out by using LS-DYNA & HYPERMESH Software.