SPH-4 helmet damage and head injury correlation.

  title={SPH-4 helmet damage and head injury correlation.},
  author={B A Slobodnik},
  journal={Aviation, space, and environmental medicine},
  volume={50 2},
  • B A Slobodnik
  • Published in Aviation, space, and environmental medicine 1979
Human tolerance to head impact was assessed by correlating the force levels required to duplicate damage seen in 14 SPH-4 aviator helmets retrieved from U.S. Army helicopter crashes with resulting head injury. Head injury occurred at peak acceleration levels far below 400 G, which is the value currently used by the U.S. Army as the pass-fail criterion in evaluating the impact attenuation performance of prospective aircrew helmets. Concussive head injuries occurred below Severity Index values of… CONTINUE READING