보행자 보호를 위한 Crumple zone 설계

Recently, enhancement of pedestrian safety becomes essential in vehicle design. The related studies on pedestrian protection have been established by the EEVC WG10(17) and IHRA. Information of safety evaluation is now opened to consumers leading to a demand of a development for pedestrian safety vehicle of automotive companies in Europe, Australia and Japan. Currently, researches have been conducted to establish the Global Technical Regulation (GTR) in which Korea also takes part. These efforts include applying the traffic conditions, accident rate and so on. Accordingly, pedestrian safety evaluation can be classified into 5 GTR types. In this paper, we suggest a crumple zone design to improve of the upper legform to bonnet leading impact test. Also, we use the impact analysis for design the rib structure using plastic material between the upper frame of the Front End Module and hood. A damage model was used to express the failure characteristic of plastics material. The reliability of impact analysis results is evaluated by comparing the analysis results with the test ones.