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Effect of Head Restraint Position and Neck Injury Criteria in Rear Impact

[+] Author Affiliations
John DeRosia, Narayan Yoganandan, Frank A. Pintar

Medical College of Wisconsin, Milwaukee, WI

Paper No. IMECE2002-32642, pp. 329-330; 2 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


The objective of this study was to determine the forces and bending moments at the top of the Hybrid III dummy neck secondary to rear impact acceleration and evaluate the various proposed injury criteria. Rear impact sled tests were conducted by applying the Federal Motor Vehicle Safety Standards FMVSS 202 acceleration pulse. Differing positions of the head restraint in terms of height (750 and 800 mm) and backset (zero, 50, and 100 mm) were used to determine the axial and shear forces, bending moments, and injury criteria (NIC, Nij , and Nkm ). The time sequence of attainment of these parameters was determined along with peak values.

Copyright © 2002 by ASME
Topics: Wounds



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