DYNAMIC BEHAVIOR AND RESIDUAL STRESSES IN RAILROAD WHEELS

A study of the dynamic behavior and residual stresses in straight-plate and curved-plate 33-inch-diameter one-wear freight-car wheels has been conducted. The dynamic behavior was determined on instrumented wheels by simulating various loading and braking conditions on a dynamometer; residual stresses were determined by relaxation techniques. The data developed in this study, in conjunction with additional data to be developed in the overall program, can be used to verify finite-element computer programs and to conduct detailed analyses of the resistance of various wheels to fatigue failure. Also, the results of a preliminary assessment of the fatigue resistance of the wheels studied indicated that both wheels have adequate resistance to plate fatigue failures under 26.4-kip vertical-journal and 15-kip lateral loads and 60-mph emergency-braking conditions.

• Corporate Authors:

  United States Steel Corporation

  Research Laboratory
  Monroeville, PA  United States  15146

  Federal Railroad Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • CARPENTER, G F
  • Wandrisco, J M
  • Sonon, D E
• Publication Date: 1980-4

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 82 p.

Subject/Index Terms

• TRT Terms: Dynamometers; Failure; Fatigue (Mechanics); Residual stress; Stresses; Thermal stresses; Vehicle design; Wheels
• Old TRIS Terms: One wear wheels; Wheel design; Wheel fatigue; Wheel stresses; Wheel thermal stresses
• Subject Areas: Design; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00319057
• Record Type: Publication
• Report/Paper Numbers: FRA-ORD-78/54 Final Rpt.
• Files: TRIS, USDOT
• Created Date: Sep 16 1980 12:00AM