Roof-to-Ground Contact Force During a Vehicle Rollover

According to current US Federal Motor Vehicle Safety Standards requirements, vehicle roof strength must be able to withstand a quasi-static force equivalent to 1.5 times the unloaded vehicle weight, with a 5 inch (127 mm) maximum roof deformation. It is often argued in the public forum that the most effective rule for ensuring vehicle occupant safety may not be the "1.5 times the unloaded weight" rule. The National Highway Safety Administration has proposed that required roof strength be increased to 2.5 times unloaded vehicle weight for available roof crush. When a vehicle is involved in rollover, currently no mechanics-based model pertaining to roof-to-ground contact forces is available in the literature. In order to develop two mechanics-based simple models, the current study was undertaken, and the models can be used to estimate required roof strength from roof-to-ground contact force calculations.

  • Availability:
  • Authors:
    • Das, Sreekanta
    • Bhattacharjee, Sudip
  • Publication Date: 2009

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01139294
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 31 2009 9:27AM