Accession Number : ADA192017

Title :   Improved Design Criteria for Crash Helmets,

Corporate Author : ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL

Personal Author(s) : Rolsten, R F ; Haley, Joseph L , Jr

PDF Url : ADA192017

Report Date : May 1986

Pagination or Media Count : 23

Abstract : A commercial motorcycle helmet was impact evaluated. The motorcycle helmet's impact protection is compared that of the SPH-4, the standard Army aviator's helmet. Drop tests, ranging from 0.91- to 2.44-meters, were used for the helmet testing by means of a helmet/headform free-fall device. The two examples of the helmet were subjected to 16 drop tests. Two of these drop tests resulted in a high level of transmitted force and acceleration which focuses on the inadequate thickness of the motorcycle helmet liner. The helmets did not provide adequate protection to prevent concussion or serious injury at all energy levels greater than produced at a 1-meter drop height. The tested helmets could be changed to provide adequate protection by doubling the thickness of the liner.

Descriptors :   *HELMETS, ACCELERATION, ARMY PERSONNEL, COMMERCE, CRASHES, DROP TESTS, ENERGY LEVELS, FLIGHT HELMETS, FREE FALL WEAPONS, IMPACT, LININGS, MOTORCYCLES, PILOTS, PROTECTION, TEST AND EVALUATION, THICKNESS, WOUNDS AND INJURIES, PROTECTIVE CLOTHING

Subject Categories : Protective Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE