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Currently the use of new materials is becoming even more prevalent in vehicle industry for the lightweight
design purpose. The design of engine hood is very important for pedestrian’s safety during a vehicle-pedestrian accident.
In order to improve the pedestrian protection performance of the new material engine hood, the radial stiffening rib
structure and trapezium sandwich structure engine hoods were proposed in this paper. And an energy-absorbing structure
has been designed on the strengthening hinge plate to reduce the pedestrian head injury further more. The simulation
results indicate that with new structures, the new material engine hoods have more uniform rigidity and better energy
absorbing ability, which would effectively reduce the engine hood intrusion and pedestrian head injuries.