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- Document resides on an external site for the record of source, links to the document are provided in context but not in the library as FRA does not maintain this record. This document lives on another website.
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19
Oct
2023
29
Sep
2023
Safety Bulletins
Safety Bulletin 2023-07; Employee Fatality – Crossing Tracks
Keywords: fouling track, situational awareness, remote control zone
28
Sep
2023
Technical Reports
Enhancing the Safety of Coupler Knuckles
Subject
Rolling Stock
Keywords: Coupler, knuckle, failure, fatigue, fracture, life calculation, load case combination, stress, tensile strength, train operation
Abstract: The primary objective of this research was to validate the finite element (FE) stress levels obtained during previous research through physical testing of a selected knuckle...
Report Number
DOT/FRA/ORD-23/32
Office
RDI-22
21
Aug
2023
Research Results
Investigation of Radiography Technology for Bolster and Side Frame Inspections
Subject
Rolling Stock
Keywords: Radiography, grade B+, nondestructive testing, NDT, casting defects
Abstract: Information about inhomogeneous areas in castings before they leave the manufacturer could provide useful information for manufacturers and customers. Some of this information...
Report Number
RR 23-13
Office
RDI-22
21
Aug
2023
Research Results
Tensile Test Results of Samples Taken from Critical Areas of Bolsters
Subject
Rolling Stock
Keywords: Bolsters, tensile test, brittle failure, castings, grade B+
Abstract: The Federal Railroad Administration (FRA) collaborated with the Association of American Railroads’ (AAR) Coupling System and Truck Castings Committee and Transportation...
Report Number
RR 23-14
Office
RDI-22