FINAL REPORT ON THE STUDY OF SIMULATED RAILS UNDER REPEATED ROLLING LOAD

This investigation has studied some of the factors which might contribute to shelly failure formation. The investigation has been directed particularly toward a study of the effects of progressive plastic deformation resulting from repeated rolling-wheel loads. Some variables introduced were wheel load, wheel radius, and cycles of repeated rolling load. Experimental evidence suggests that plastic deformation occurs in a rail with early successive load repetition. Further, the tests show that, although deformation is inelastic, many of the effects of the variables studied would be qualitatively predictable by elastic equations such as the Herz equations and this work suggest that smaller wheel loads or larger diameter wheels would be quite helpful. It is also interesting to note that the Herz equations would suggest the use of higher strength rails for longer rail life. This is also in agreement with general observations from actual service and from laboratory tests of rail.

• Corporate Authors:

  American Railway Engineering Association

  59 East Van Buren Street
  Chicago, IL  United States  60605
• Authors:
  • Hyler, W S
  • Grover, H J
• Publication Date: 1954

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 840-854
• Serial:
  • AREA BULLETIN
  • Volume: 55
  • Publisher: American Railway Engineering Association

Subject/Index Terms

• TRT Terms: Defects; Deformation; Dynamic loads; Equipment tests; Failure; Hardness; Railroad rails; Shear properties; Shelling (Metals); Size; Stresses; Technology; Wheel loads; Wheels
• Geographic Terms: United States
• Old TRIS Terms: Rail failure; Shelling; Shelling (Rails); Test equipment; Wheel size
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00040826
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM