Full-Scale Rollover Test and Corresponding Analytical Modeling – Survivability of Top Fittings for CPC-1232 Tank Car

Trent, Robert; Prabhakaran, Anand; Gantoi, Florentina; Sharma, Vinaya

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Full-Scale Rollover Test and Corresponding Analytical Modeling – Survivability of Top Fittings for CPC-1232 Tank Car

2020-05-01
By Trent, Robert ; Prabhakaran, Anand ; Gantoi, Florentina

File Language:

English

Details

Creators:

Trent, Robert ; Prabhakaran, Anand ; Gantoi, Florentina ; Sharma, Vinaya
Corporate Creators:

Sharma & Associates, Inc.
Corporate Contributors:

United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development ; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology
Subject/TRT Terms:
Publication/ Report Number:

DOT/FRA/ORD-20/22
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Technical Report, 2015-2018
Contracting Officer:

Gonzalez, Francisco
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration
Abstract:

A full-scale rollover test was performed on a CPC-1232 tank car body to determine the survivability of the top fittings and provide a comparison to past tank car-type rollover tests. Dynamic simulations were performed prior to the test to determine appropriate test conditions and parameters. Pivoting the carbody in a fixture about a fixed axis controlled the test conditions. The test was designed so that the manway bonnet, the highest profile top fitting, impacted a concrete target pad at 7.8 mph. As a result of the impact, the manway bonnet sheared off at its fasteners, several fasteners securing the pressure plate cover failed, and the unloading/loading valves sheared off. This resulted in a lading release. Post-test, the analytical simulation was correlated against the test results. Researchers recommend that methods to avoid the “unzipping” failures of bolted connections be considered for future designs. Alternatively, the observed failure mechanism may be incorporated into the design/specification process.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/49339/dot_49339_DS1.pdf
File Type:

[PDF - 5.82 MB]
Collection(s):

Federal Railroad Administration
Main Document Checksum:

urn:sha-512:fda40dca98f289b4e37c031ce65bcabe4c17a6bb93048707bf38d1983b88d71d9520f12b2fb5219a828887759525d5e069fbeef7daba8642d9881e9ede5403ec

File Language:

English

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