Override/Underride Crush Energy: Results from Vertically Offset Barrier Impacts

In order to investigate override/underride crush energy behavior, this paper reports on a series of repeated-impact crash tests of a 1990 Ford Taurus sedan into a rigid-vertically offset barrier. The test setup and conduct are described. Test results, including impact speed, rebound speed and residual crush profiles, are presented. The results of these tests are discussed and compared to existing crash test data for this vehicle model. Previous override/underride crush energy methodologies are also applied to the new data. Findings indicate that plots of crush energy and energy of crush factor versus crush data derived by averaging the previously averaged bumper and hood residual crush data (i.e., the averages of the residual crush of the bumper and the leading edge of the hood are first determined individually and then the overall average is calculated) overlays the full-frontal barrier data very closely. Applying the Tumbas/Smith (1988) averaging method to the new test data results in an overestimation of the actual crush energy. Applying the method proposed by Croteau et al (2001) results in a coefficient value that is relatively constant over a large range of crush depths because the energy versus crush plot is essentially linear. Directions for future research are discussed.

  • Availability:
  • Supplemental Notes:
    • Paper No. 2005-01-1202
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • Marine, Micky C
    • Wirth, Jeffrey L
    • Peters, Brian W
    • Thomas, Terry M
  • Publication Date: 2005-4


  • English

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: pp 211-223
  • Monograph Title: Accident Reconstruction 2005

Subject/Index Terms

Filing Info

  • Accession Number: 01005731
  • Record Type: Publication
  • ISBN: 0768015758
  • Files: TRIS
  • Created Date: Oct 5 2005 9:54PM