This paper deals with the development of a new family of crash cushions which are reusable, self-restorative, and require very low maintenance. Kinetic energy is dissipated in these devices through the collapse of laterally loaded cylinders constructed from high molecular weight/high density polyethylene (HMW/HDPE). This polymer possesses the following favorable material characteristics: High stiffness, high abrasion resistance, high chemical corrosion resistance, high moisture resistance, high ductility, high toughness, high tensile strength, and high impact resistance over a wide temperature range. As a result, a HMW/HDPE cylinder can dissipate large amounts of kinetic energy, undergo significant deformations and strains without fracturing, and then essentially regain its original shape and energy dissipation potential upon removal of the load.


  • English

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 93-108
  • Serial:
    • VTI Conferens
    • Publisher: Swedish National Road and Transport Research Institute (VTI)
    • ISSN: 0347-6049

Subject/Index Terms

Filing Info

  • Accession Number: 00723262
  • Record Type: Publication
  • Report/Paper Numbers: No. 4A, Part 2
  • Files: TRIS
  • Created Date: Jul 16 1996 12:00AM