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Residual Stress Measurements of Retrofitted Tank Car Weldments

A series of residual stress measurements were made on two tank cars that were retrofitted with stiffener beams. The measurements were made on the tank shell exterior in the vicinity of fillet skip welds, which were used to attach the stiffener beams to the tank structure. One of the cars had been...

Controlled Tank Car Impact Tests

A series of controlled tank car impact tests were performed by the Association of American Railroads as part of a Federal Railroad Administration Task Order entitled “Hazardous Materials Transportation Safety Research Test Program”. The objective of these tests, in which a weighted locomotive was...

Hazardous Materials Transportation in Tank Cars: Analysis of Risks- Part I

This report covers the development of a methodology to evaluate the potential national public risk arising from the transportation of hazardous materials in tank cars on US railroads. The analysis is intended to assess the relative changes in the overall risk when (structural) safety devices are...

FRA Tank Car Manufacturing/Repair/Retest Facility Evaluation Form

An inspection form is described to aid Federal Railroad Administration (FRA) inspectors when inspecting tank car manufacturing and repair facilities, when examining newly constructed tank cars, or when inspecting tank cars which have been repaired or retested. Instructions and background...