alternative designs that may improve performance. In this . context, improvement means incr easing the survivable impact . The specimens are made from railroad tank car steel, have different 49 CFR § 179.16 - Tank-head puncture-resistance systems (a) Performance standard. When the regulations in this subchapter require a tank-head puncture-resistance system, the system shall be capable of sustaining, without any loss of lading, coupler-to-tank-head impacts at relative car speeds of 29 km/hour (18 mph) when:(1) The weight of the impact car is at least 119,295 kg (263,000 pounds); (2) The impacted tank car is coupled to one or more
(a) Performance standard. When the regulations in this subchapter require a tank-head puncture-resistance system, the system shall be capable of sustaining, without any loss of lading, coupler-to-tank-head impacts at relative car speeds of 29 km/hour (18 mph) when:(1) The weight of the impact car is at least 119,295 kg (263,000 pounds); (2) The impacted tank car is coupled to one or more A DOT111A Tank Car by Any Other Name..The performance standard in the regulations (see 49 CFR §179.16) means that those cars will survive an 18 mile per hour impact, to be verified by testing, without releasing contents. When the tank car companies added head shields and shelf couplers to their 111A tank cars, they determined that the "S" could also be substituted in place of the "A". Analysis of Puncture Resistant Steel for Tank Cars Abstract. A new puncture resistant steel is developed to improve the safety of tank cars transporting flammable liquids. The puncture behavior of the tank cars is simulated using a ductile damage model available in the finite element program, ABAQUS.
tank cars containing hazardous materials as regulated and defined by the U.S. Department of Transportation (DOT), including the 15 car loads of anhydrous ammonia, 10 car loads of liquid petroleum gas, 11 car loads of styrene monomer, and 3 empty tank cars that contained residue of a DOT-regulated hazardous material. (See appendix C for a complete Hazardous Materials:Improving the Safety of Railroad Tank Jan 13, 2009 · Recognizing that improvements in tank car performance have historically relied in large part on thicker and/or stronger steel, which brings with it a corresponding addition to the empty weight of the tank car, we also proposed an allowance to increase the gross weight on rail for tank cars designed to meet the proposed enhanced tank-head and Miscellaneous Hazmat Papers FRAProperties of Tank Car Steels Retired from the Fleet:In 2005, SAFETEA-LU required FRA to conduct a comprehensive analysis to determine the impact resistance of the steels in the shells of pressurized tank cars constructed prior to 1989.
New tank cars constructed after October 1, 2015 are required to meet enhanced DOT Specification 117 design or performance criteria for use in an HHFT. Existing tank cars must be retrofitted in accordance with the DOT-prescribed retrofit design or performance standard for use in an HHFT. SUPER-TOUGH STEEL FOR BRIDGES AND OTHER During performance of this project, the effect of addition of various levels of titanium on mechanical and fracture properties and microstructure of A710 Grade B steel was investigated. The super-tough steel also was extensively tested for tank-car application. The steel was marketed to Northern DOTs and steel companies. This work is Steel vs. Plastics:The Competition for Light-Vehicle Fuel However, Ford decided to increase steel-tank stamping capacity at Dearborn; the Explorer and the new F-150 truck (PN96) gas tanks have been switched back from plastic to zinc-nickel coated steel. 8. Kautex is supplying Ford's facility in Milan, Michigan, with this six-layer technology. The tanks are designed to meet California's stricter evaporative fuel standards and consist of an inner layer of HDPE joined by
Sep 28, 2010 · RSI Issues New Tank Car Component Standards; Manufacturers around the world have produced high performance wheel steels that have the potential to improve wheel life through changes in microstructure, and alloy elements, improved microcleanliness, increased hardness, and increased yield strength. The other high performance wheel steels Tank Car Openers Railcar Openers Arnold CompanyTank Car Pry Bar(All Steel) Designed to engage the grab-handle of tank car manway covers. Five-foot steel pipe handle and a rocking foot provide the leverage to overcome suction caused by the difference in atmospheric pressure outside the tank car and inside. Tank Car Openers Railcar Openers Arnold CompanyTank Car Pry Bar(All Steel) Designed to engage the grab-handle of tank car manway covers. Five-foot steel pipe handle and a rocking foot provide the leverage to overcome suction caused by the difference in atmospheric pressure outside the tank car and inside.
An improved steel has been developed that prevents or delays the puncture of a tank car in the event of an accident or derailment. A simulation model was developed to validate steel's performance and avoid costly destructive testing. Value:Low carbon steel with excellent properties that improves productivity for UP:Union Pacific and Dow Cooperate to Improve Rail Safety A key part of the MOC, the Next Generation Rail Tank Car Project, delivered the first new tank cars off the assembly line in 2Q 2012, with a design that will provide 2-1/2 to 3 times better safety and security performance than cars in the existing fleet. High Strength Copper Steel for Rail Tank Cars to Bridges