Weathering Trials and New Rigidity Tests on Protective Helmets for Motor Cyclists.

Abstract

Protective helmets with fiberglass or polycarbonate shells were exposed to the weather for three years and subjected to conventional and new rigidity tests. These indicated that: (1) Exposure did not cause deterioration in performance. (2) There was a serious imbalance between the rigidity of the shell and the hardness of the liner. (3) Some current Standards encourage selection of a grade of shock absorbing liner that is too hard relative to the rigidity of the shell.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1984
Accession Number
ADA143907

Entities

People

  • S. R. Sarrailhe

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Accidents
  • Air Force
  • Australia
  • Aviation Medicine
  • Department Of Defense
  • Engineering
  • Fiberglass
  • Glass Fibers
  • Impact Loads
  • Impact Tests
  • Materials
  • Mechanical Engineering
  • Motor Vehicle Accidents
  • Shock
  • Standards
  • United States
  • Universities

Readers

  • Exercise and Sports Science.
  • Explosive Engineering.
  • Structural Dynamics.