Published: 9 February 2011 at 13:56
Impact absorption specialists Cellbond, a division of Encocam Ltd based in Huntingdon, Cambridgeshire, has collaborated with researchers at Anglia Ruskin University to develop and test a 'pedestrian-friendly' car bonnet design which could cut the number of fatalities and serious injuries caused by impact in car accidents.
Pedestrians account for 20% of all traffic fatalities in Europe and 14% in the United States - with the majority being caused by head impacts. Statistically 65% of pedestrians impacting or rolling on the bonnet of car that is going above 40mph are killed or suffer from serious injury.
In such a crash the pedestrian is initially impacted by the car and then by the ground, and most fatalities and head injuries occur when there is insufficient clearance between the bonnet and stiff underlying engine components.
Now a 'pedestrian-friendly' car bonnet has been designed by Cellbond's Dr Mehrdad Asadi in research collaboration with Anglia Ruskin University's Engineering Simulation Analysis and Tribology (EAST) Group. The 'pedestrian-friendly' car bonnet design makes use of an aluminium mechanical energy absorber. Its works via a sheet of metal that is etched into a grid format so that, upon impact, it collapses inwards - absorbing the impact energy with less resultant reaction forces which causes the impact injury.