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An Investigation of the Impact Resistance of Glazing Materials for Railroad Vehicles.
| 题名： | An Investigation of the Impact Resistance of Glazing Materials for Railroad Vehicles. |
| 作者： | Rakaczky,John A.; |
| 关键词： | GLASS, WINDSHIELDS, POLYCARBONATES, ANNEALING, SMALL ARMS AMMUNITION, PROJECTILES, RESISTANCE, OFF THE SHELF EQUIPMENT, IMPACT STRENGTH, WINDOWS, SAFETY, SHIELDING, PLASTICS, TEMPERING, SPALLATION, VINYL PLASTICS, LAMINATED GLASS, ABRASION, LAMINATED PLASTICS, RAILROAD CARS, LOCOMOTIVES. |
| 摘要： | 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) |
| 总页数： | 86 |
| 报告类型： | 科技报告 |
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