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Strain-Life Fatigue Analysis

The strain-life approach to characterize the fatigue behavior of materials and its applications to railroad equipment design have been investigated. A logical means of accounting for local plastic strains, which are the cause of fatigue failures, has been given, and constitutive relations between...

Safety Margin Testing of a 70-Ton Boxcar with Shifting Plywood Lading: Test Results Data

Tests were performed at the Transportation Test Center, Pueblo, Colorado, in a joint Association of American Railroads (AAR) and Federal Railroad Administration (FRA) effort in the April-May-June period of 1982. AAR objectives were to perform a "pilot" test on the Vibration Test Unit (VTU) as a...

Safety Margin Testing of a 70-Ton Boxcar with Shifted Plywood Lading: Summary Results

Report Number 12: Metallurgical Observations of 21 Plate Steel Samples Taken From Seven Tank Cars Involved in the April 8, 1979 Railroad Accident at Crestview, Florida

This is the second of two reports intended to give information on and metallurgical characterization for each of 21 plate samples taken from tank cars involved in an accident at Crestview Florida in April 8, 1979. The earlier report contains the results of a field investigation, which gives...

High Performance, High Cube Covered Hopper Car Program, Base Car Dynamic Performance Tests: Volume 1 - Rock-and-Roll and Bounce

A series of dynamic performance tests were conducted on a 100-ton high cube (4750 cu. ft.) covered hopper car. This report describes the test program concerning the rock-and-roll and bounce tests, which were conducted on shimmed track sections at the Transportation Test Center in Pueblo Colorado....

Development of Hybrid Cost Functions From Engineering and Statistical Techniques: The Case of Rail - Phase II Final Report - Executive Summary

Cost analysis is important in every transportation industry, to the firms or agencies which provide service, to regulatory bodies, and to public policy makers. In the past, railroad cost analyses have been of two types: 1) statistical analyses of aggregate cross-section data from a variety of firms...

Development of Hybrid Cost Functions From Engineering and Statistical Techniques: The Case of Rail - Phase II Final Report

Comparative Evaluation of Energy Management Models for Transit Systems

The energy consumption of BART transit cars was measured with and without regeneration during the period 25 August - 2 September 1981. The test data was then compared with the predictions of different energy management models currently in use for transit system studies. This report presents the...

DOTX 219 Schedule August 2016

Chopper Locomotive Demonstration Program Phase II, Final Report

An E44 electric locomotive of 5000 hp, 6 axles and 6 motors was used as a test bed to evaluate full scale use of 6 separate high power DC to DC choppers for propulsion. The normal phase control rectifier equipment was removed and replaced by a DC link at 2000 volts as the source of energy to the...

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