The magnitude of crash acceleration affects neck injury risk in rear crashes. It is less clear whether different shaped crash pulses of similar overall severity also cause different injury outcomes. This study examined two crash pulse shape characteristics and their effects on dummy responses in rear crashes: 1) oscillations of approximately twice the frequency of the main mode typical of fullscale crash tests and 2) timing of the maximum peak acceleration. The presence of acceleration oscillations did not influence the magnitudes of BioRID responses. The timing of peak sled acceleration did affect both the timing and magnitude of some BioRID responses.
Keywords:
Acceleration; Head restraints; Seats; Sled tests; Rear Impact; Whiplash