DEVELOPMENT OF REUSABLE HIGH-MOLECULAR-WEIGHT--HIGH-DENSITY POLYETHYLENE CRASH CUSHIONS

The development of a family of low-maintenance, reusable crash cushions that employ energy dissipaters made of high-molecular-weight--high-density polyethylene is described. This "smart" energy dissipating thermoplastic is self-restorative and reusable and possesses excellent hysteresis characteristics. The design process involved quasistatic and impact scale model experiments, finite-element modeling, and a full-scale crash testing program conducted according to the guidelines of NCHRP Report 350. A treatment of all of these design components is presented. It is demonstrated that scale model experiments and finite-element modeling are cost-effective tools whose employment can minimize the number of costly full-scale crash tests required to qualify devices as acceptable for use on the National Highway System.

Language

  • English

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 11-27
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00727312
  • Record Type: Publication
  • ISBN: 0309062241
  • Files: TRIS, TRB
  • Created Date: Oct 18 1996 12:00AM