In order to reduce the probability of DOT Class 112A and 114A railroad tank car head punctures, the Department of Transportation has required that one-half inch thick steel head shields be applied to these cars. They are to be spaced in front of the tank head and are to cover approximately the lower half of the head. Recognizing the need to assure that the method of attachment of these heavy plates is adequate, the RPI-AAR Tank Car Safety Project conducted an extensive series of instrumented impact and in-train tests of four different attachment designs. Using these test data and data on predicted in-service environment, fatigue life calculations were made for each design. This report describes the entire study and concludes with a proposed specification which is recommends be adopted by the AAR Tank Car Committee to qualify candidate attachment designs.

Media Info

  • Features: Figures; Tables;
  • Pagination: 35 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00129154
  • Record Type: Publication
  • Source Agency: Association of American Railroads Research Center
  • Report/Paper Numbers: RA-05-3-35
  • Files: TRIS
  • Created Date: Feb 19 1976 12:00AM