m Shariyat - Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran
Hossein Ashrafi - Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran
Hamed BandBand - Department of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran

Head is one of important parts of human body that injuries of this region can cause serious damage and even death in some cases. The engineering aim of injury biomechanics research isto develop methods for improving the better designs and achieve better energy absorption under impact loading forabsorbing more energy and safe models. In these accidents, the mechanism of injury is based on brain damage. The brain is loosely coupled to the skull with the effect that its motion will lag that of skull, resulting bruising of the brain as it impacts against the interior surface of the skull. Stretching theblood vessels, which arises as a result of this lag in motion, can cause them to strain excessively, rupture, fail and bleed.In this study we used polymer damper for absorbing energy and reduce the transition energy to the helmet and human head system