The object of the program was to make long duration head impacts and to develop scaling relationships to allow extrapolation of impact data for infra-human primates to living humans. A series of primate side impacts, to the head and body was conducted in parallel with a series of impacts to human cadavers. Dimensional analysis techniques were employed to estimate in vivo human tolerance to side impacts. The threshold of closed brain injury to humans was found to be 76G's for a pulse duration of 20 msec and an impact velocity of 29.5 mph. The maximum tolerable penetration to the chest was found to be 2.65 inches for both the left and right sides. Scaling of abdominal injuries to humans was accomplished by employing a factor which relates impact contact area, animal mass, impact force, and pulse duration, to injury severity. The maximum tolerable contact pressure to the upper abdomen of a human was found to be 32 psi.

  • Supplemental Notes:
    • See also report dated Jun 71, PB-203 721.
  • Corporate Authors:

    University of Michigan, Ann Arbor

    Highway Safety Research Institute
    Ann Arbor, MI  United States 
  • Authors:
    • ROBERTS, V L
  • Publication Date: 1973-9

Media Info

  • Pagination: 97 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00051604
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: UM-HSRI-B1-73-2 Final Rpt
  • Contract Numbers: DOT-HS-031-2-382
  • Files: NTIS
  • Created Date: Mar 25 1974 12:00AM