AN INVESTIGATION OF THE IMPACT RESISTANCE OF GLAZING MATERIALS FOR RAILROAD VEHICLES

A test program was conducted to determined the impact resistance of several types of glazing materials and thereby develop criteria for the protective glazing to be used in railroad vehicles such as locomotives, cabooses, and passenger coaches. Twenty (20) materials were subjected to the impacts of small arms projectiles, hand-thrown missiles, and heavy, suspended objects. Results indicated that there are materials currently available as "off the shelf" items that would provide protection from the following threats: (1) a .22-caliber, high-velocity, long rifle projectile fired from a distance of 92 meters (300 feet); (2) hand-held objects such as rocks or railroad spikes thrown from a distance of 8 meters (about 25 feet); and (3) a heavy, suspended object such as a cinder block struck at a vehicle speed of 48 km/hr (30 mph). (Author)

• Supplemental Notes:
  • Supersedes Rept. no. ARBRL-IMR-601.
• Corporate Authors:

  Aberdeen Proving Grounds

  Army Armament Res & Dev Command, Ballistics Research Lab
  Aberdeen, MD  United States  21005
• Authors:
  • Rakaczky, J A
• Publication Date: 1979-9

Media Info

• Pagination: 86 p.

Subject/Index Terms

• TRT Terms: Abrasions; Annealing; Cabooses; Crash tests; Glass; Laminated plastics; Locomotives; Nonshattering glass; Passenger cars; Plastics; Polycarbonates; Railroad cars; Regulations; Safety; Shock resistance; Size; Spallation; Specifications; Standards; Tempering; Vandalism; Vehicle design; Vinyl resins; Weapons; Windshields
• Uncontrolled Terms: Ammunition; Impact strength; Projectiles; Safety standards; Shielding
• Old TRIS Terms: Government regulations; Locomotive design; Off the shelf equipment; Passenger car design; Resistance; Windows
• Subject Areas: Design; Law; Railroads; Research; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 00312613
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: ARBRL-MR-02955 Final Rpt., AD-E430-327
• Files: TRIS
• Created Date: May 7 1980 12:00AM