Abstract: In a modern day vehicle, usually a monocoque chassis is preferred which is designed and manufactured as a single structure. Such a chassis in case of acollision absorbs the impact energy by getting deformed itself and also reduces thedeceleration to an appreciable extent such that no fatal damage is impinged on thepassenger.In the motorsport world, a mechanical structurecalled an Impact Attenuator is used to prevent extreme damage to the vehiclechassis in the event of collision.