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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Large-Scale Testing and Numerical Modeling of Full- and Reduced-Scale Rail Car Floor Assemblies

Document Series
Technical Reports
Author
Federal Railroad Administration
Report Number
DOT/FRA/ORD-22/36
Office
RPD-32
Subject Rolling Stock
Keywords
Rail car, fire performance, floor assembly, large-scale testing, numerical modeling, reduced-scale test article, rolling stock

A previously developed methodology for reducing the physical scale of test articles for fire performance testing of rail car floors was benchmarked using a series of large-scale tests and validated finite element simulations. The simulations showed that the experimental differences between the full-scale and reduced-scale test articles was due to testing discrepancies in the actual thermal and mechanical boundary conditions observed during the tests. While not directly validating the reduction methodology, this effort found no fundamental flaws in the methodology if the reduced-scale tests are properly executed.


Last updated: Friday, September 30, 2022