Full-scale tank car rollover tests - survivability of top fittings and top fittings protective structures : final report.

Trent, Robert; Prabhakaran, Anand; Brabb, David; Sharma, Vinaya; Sharma & Associates, Inc.

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Full-scale tank car rollover tests - survivability of top fittings and top fittings protective structures : final report.

2016-05-01
By Trent, Robert ; Prabhakaran, Anand ; Brabb, David ; ...

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Creators:

Trent, Robert ; Prabhakaran, Anand ; Brabb, David ; Sharma, Vinaya

Trent, Robert ; Prabhakaran, Anand ; Brabb, David ; Sharma, Vinaya Less -
Corporate Creators:

Sharma & Associates, Inc.
Corporate Contributors:

United States. Federal Railroad Administration. Office of Research, Development, and Technology
Subject/TRT Terms:

[+]

Bowl Crash Tests Derailments Finite Element Method Fittings Full-scale Testing Protection Rollover Rollover Crashes Skid Sleeve Tank Car Tank Cars Tank Car Safety Vehicle Design Weldments
Publication/ Report Number:

DOT/FRA/ORD-16/12
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final report
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology
Abstract:

Full-scale rollover crash tests were performed on three non-pressure tank carbodies to validate previous analytical work and

determine the effectiveness of two different types of protective structures in protecting the top fittings. The tests were performed

with three different tank cars: 1) an unprotected base case car, 2) a base case car with an added protective skid weldment, and 3) a

base car with an added protective bolt-on sleeve on the unloading nozzle with a reinforcing cone. Test conditions such as the

impacting speed and angle were controlled by pivoting the carbodies in a fixture about a fixed axis and the fittings (or protective

structures) impacted a concrete target pad. Before each test, proper test conditions and parameters were determined by Dynamic

Finite Element analysis.

These tests establish that the skid and bolt-on sleeve concepts are efficient and practical methods for protecting top fittings on

non-pressure cars from failure (and lading release) during rollover derailments. The demonstrated concepts can be developed into

application-specific designs by tank car builders and implemented on tank cars as appropriate.
Format:

PDF
Collection(s):

Federal Railroad Administration US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:e65c1bcbb9780f52a07d6e076911fa6acdfb8e4894441c43e96d7a117a9206a8
Download URL:

https://rosap.ntl.bts.gov/view/dot/31184/dot_31184_DS1.pdf
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Full-scale tank car rollover tests - survivability of top fittings and top fittings protective structures : final report.

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