This is an addendum report to RPI-AAR Tank Car Safety Research and Test Project Report No. RA-09-4-41 (AAR R-343) dated December 22, 1978. This addendum report includes the strain gage rosette analysis of the destructive impact tests of the protective skids and the results of the siphon pipe tests. The results of the strain gage tests were used in an attempt to apply an existing engineering method of analysis of the skid designs. The analysis method utilized a Welding Research Council computer program called "WERCO." While correlation between test results and calculated stress values were not consistent for some skid designs, it was concluded that the "WERCO" program offered an excellent approach to initiate a protective skid design study. Based on results of the overall test program, recommendations are made for revisions to the AAR Specifications For Tank Cars for "protection of bottom discontinuities on new non-pressure tank car tanks." Recommendations are also made in regard to the usage of the fatigue analysis test data, outlet nozzle design test data, and a siphon pipe installation system, on protective skid equipped cars, that will be effective in preventing the pipe from being pushed out of its top housing.

  • Supplemental Notes:
    • RPI-AAR Tank Car Safety Research and Test Project.
  • Corporate Authors:

    Association of American Railroads Research Center

    3140 South Federal Street
    Chicago, IL  United States  60616
  • Authors:
    • Kunz, E L
    • Olson, L L
  • Publication Date: 1979-4-23

Media Info

  • Features: Figures;
  • Pagination: 38 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00194636
  • Record Type: Publication
  • Source Agency: Association of American Railroads
  • Report/Paper Numbers: RA-09-4-41A Res Rpt., AAR Rpt. R-364
  • Files: TRIS
  • Created Date: Jun 30 1979 12:00AM