DYNAMIC TESTS OF A YIELDING SEAT AND SEAT BELT SYSTEM FOR CRASH PROTECTION

Dynamic tests were carried out on standard and yielding seat belt restraint systems to evaluate and compare their performance. The seat belts were of the lap sash type with the lap straps attached to the seat. The yielding system had energy absorbers in the sash strap and seat anchorage. Test sled accelerations ranged from 120 to 240 m/sq s with the standard belt and to 300 m/sq s with the yielding system. Peak restraint loads increased progressively with increase in acceleration in the case of the standard system, but the yielding system allowed an increase in the acceleration of approximately 85% without an increase in peak load. At a sled acceleration of 240 m/sq s the load in the yielding system was 70% of that in the standard system. The work is applicable to restraints in both aircraft or motor vehicles.

• Corporate Authors:

  Aeronautical Research Laboratories

  Larimer Street, Fisherman's Bend
  Melbourne SC7, Victoria,   Australia 
• Authors:
  • Sarailhe, S R
  • Hearn, N D
• Publication Date: 1975-3

Media Info

• Features: Figures; Tables;
• Pagination: 4 p.

Subject/Index Terms

• TRT Terms: Dynamic tests; Energy absorbing materials; Manual safety belts; Peak periods; Restraint systems
• Uncontrolled Terms: Peak loads
• Old TRIS Terms: Energy absorbers; Passenger restraints; Sleds
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00142037
• Record Type: Publication
• Source Agency: Highway Safety Research Institute
• Report/Paper Numbers: ARL/Struc 358 Final Rpt.
• Files: TRIS, ATRI
• Created Date: May 31 1977 12:00AM