FORMATION OF FATIGUE CRACKS IN RAILS

ERMUEDUNGSBRUCHBILDUNG IN SCHIENEN

The rates of unlimited fatigue strength resisting flexion, traction-compression, and shearing, are, in the case of a perfect steel, linear functions of the resistance to fracture caused by traction, in the author's view. He provides diagrams showing these rates, as well as their variation in relation to the rail surface. He makes brief reference to the distribution of pressures in the rail, and explains the manner in which the rates of unlimited fatigue strength can be exceeded when the rail contains inclusions of slag, segregations, or concentrations of ferrite. He explains, in detail, the mechanism of the propagation of the oval flaw and concludes with a number of observations concerning the means of improving the resistance of rails.

• Corporate Authors:

  Hestra Verlag

  Holzhofallee 33, Postfach 4244
  6100 Darmstadt 1,   Germany 
• Authors:
  • Beres, L
• Publication Date: 1973-3

Language

• German

Media Info

• Features: Figures; References;
• Pagination: 6 p.
• Serial:
  • Eisenbahntechnische Rundschau
  • Issue Number: 3
  • Publisher: Hestra Verlag

Subject/Index Terms

• TRT Terms: Cracking; Rail steel; Railroad rails; Railroad tracks; Stresses
• Old TRIS Terms: Rail fissures; Rail metallurgy; Rail stress
• Subject Areas: Materials; Railroads;

Filing Info

• Accession Number: 00051967
• Record Type: Publication
• Source Agency: International Union of Railways
• Files: TRIS
• Created Date: Apr 26 1976 12:00AM