SHOCK ABSORPTION TEST METHODS FOR PROTECTIVE HELMETS

The shock absorption properties of protective helmets for road users are currently tested by one of three methods viz: the rigid headform, the swingaway headform and the falling headform modes. The rigid headform method is limited in scope as regards possible impacts sites for modern road helmets which afford head protection well beyond the extent of their forerunners. The swingaway headform and the falling headform methods both overcome this limitation. Currently the falling headform method is operated in terms of the headform accelerations developed for specified impact velocities, instead of the parameters of developed force and impact energy which are customary for the testing of materials. /TRRL/

• Authors:
  • JEHU, V J
• Publication Date: 1974-6

Media Info

• Features: Figures; References;
• Pagination: 9 p.
• Serial:
  • Aspects Techniques de la Securite Routiere
  • Issue Number: 58

Subject/Index Terms

• TRT Terms: Absorption; Deployable head restraints; Energy; Headrests; Helmets; Impacts; Mechanical acceleration; Mechanical shock; Motorcyclists; Protection; Protective clothing; Safety equipment; Shock absorbers; Speed; Test procedures; Travelers
• Uncontrolled Terms: Protective equipment
• ITRD Terms: 6758: Absorption; 5405: Acceleration; 1687: Crash helmet; 213: Energy; 1752: Motorcyclist; 5471: Shock; 5408: Speed; 6288: Test method
• Subject Areas: Energy; Highways; Safety and Human Factors; Security and Emergencies; Society; Vehicles and Equipment; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 00097701
• Record Type: Publication
• Source Agency: Road Safety Study and Research Fund, Belgium
• Files: ITRD, TRIS
• Created Date: Sep 30 1975 12:00AM