Full-Scale Shell Impact Test of a DOT-105 Tank Car

On August 1, 2018, the Federal Railroad Administration (FRA) conducted a full-scale shell impact test of a DOT-105A500W (DOT-105) tank car at the Transportation Technology Center (TTC) in Pueblo, CO. The shell of the car was struck at its mid-length by a 297,000 pound ram car equipped with a 6-inch by 6-inch impactor. An objective of conducting this test was to collect data that can be used to verify and/or validate results from finite element analyses (FEA) as part of a framework for comparing the puncture resistance of various tank car designs. The data from this test will be publicly available to facilitate their use in future model validation activities in a full Technical Report (under review). The tank car was filled to 89.4 percent of its capacity with water. The car was pressurized to ~100 psi, which is a typical in-service pressure for this type of tank car. Based on pre-test FEA, the target test speed was set between 9.5 and 10 mph so that puncture was a likely outcome. The actual impact occurred at 9.7 mph. This speed corresponds to an impact energy of approximately 1 million foot-pounds of energy. The tank was punctured after an indentation of 27 inches, at a peak force of ~840,000 pounds. Based on review of the test measurements, the impactor slowed to less than 1 mph when puncture occurred, confirming the model prediction that an impact speed of 9.7 mph only slightly exceeds the speed necessary to puncture this tank car.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: 4p
  • Serial:
    • Research Results
    • Issue Number: RR 19-04
    • Publisher: Federal Railroad Administration
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 01696587
  • Record Type: Publication
  • Files: NTL, TRIS, ATRI, USDOT
  • Created Date: Feb 19 2019 12:48PM