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Summary of Charpy and Dynamic Tear Testing of Bolster Samples

Document Series
Research Results
Federal Railroad Administration
Report Number
RR 23-12
Subject Rolling Stock
Charpy, dynamic tear, bolster, side frame, brittle failure

The Federal Railroad Administration (FRA) collaborates with the Association of American Railroads’ (AAR) Coupling System and Truck Castings Committee and Transportation Technology Center, Inc. to investigate possible solutions to early-life failures of railcar side frames and bolsters. 

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Last updated: Monday, August 21, 2023