Investigation of the Hyperelastic Material Coated Steel Car Hood Concerning Pedestrian Head Impact Protection by Finite Element Analysis

Yazıcı M., Yücel C., Güçlü H.

7th International Advances in Applied Physics and Materials Science Congress Exhibition, Muğla, Turkey, 22 - 26 April 2017, pp.98

  • Publication Type: Conference Paper / Summary Text
  • City: Muğla
  • Country: Turkey
  • Page Numbers: pp.98
  • Bursa Uludag University Affiliated: Yes


Pedestrians are a high-risk group in vehicle accidents, especially in urban areas. In the world, every year so many pedestrians are killed by vehicle impacts. Therefore, the pedestrian protection is one of the most crucial subjects in automotive manufacturers, and many governments are released more drastic regulations. In this study, the pedestrian head impact on an energy absorber material covered steel bonnet was investigated by Finite Element Method. The pedestrian head impact is the first reason of the fatality in the vehicle-pedestrian accidents. The pedestrian head-form is used for simulations according to EEVC/WG17 regulations. The cover material thickness, hyperelastic materials type, and the cross section geometry were the parameters in the impact simulations. Results of the impact analyses were compared with each other by HIC (Head Injury Criterion) calculations. The HIC values are accepted for measuring pedestrian’s head injury level. In the study, various elastomeric materials were used in top layer as a cover. And also developed layered structure designs by steel, and elastomeric materials layers were discussed on light-weighting. According to results, the HIC values and weight of the car hood reduced by the all proposed layered panels.