Building And Performance Validating Of Adult Pedestrian Finite Element Head Model To Evaluate The Car Hood Design

Abstract Car - Pedestrian accidents cause a loss of thousands of lives annually in addition to injuries. Therefore pedestrian protection is one of the important issue in the design of friendly cars. This study shows the performance of finite element head model FEM to study and foretelling the extent of injury that occurs at pedestrian accidents and tests the design of the front of vehicle according to European Enhanced Vehicle-Safety Committee EEVC WG17 regulations of bonnet test. The FE models are powerful tools and effective method to understand how to reduce the severity of the fatalities of injuries in road pedestrian collision incidents. In this study the finite element head model impactor has been built by using Soldworks program and simulated the impact process in LS-DYNA program to examine the four engine-hoods have been designed. All of the hood plates and inner hood panel were considered. Head Injury Criterion HIC internal energy time history generated in the head and hood displacement occurred in the hood inner panel and weights of the complete hood are investigated. The results of the study concluded that modification of headform design of the car hood contributes in achieving low HIC and lead to a pedestrian friendly car. The results show that the structural design of the inner hood panel is one of the key factors affecting the design and specifications of car hood.