DEFECTIVE RAIL FRACTURE UNDER RESIDUAL, THERMAL AND DYNAMIC STRESSES

In countries such as Canada, which experience significant temperature changes throughout the year, thermal, residual and dynamic stresses can combine to cause rail to fracture. The resulting derailments and clean-up operations can be expensive. Several research efforts have been directed towards defining and improving the fracture resistance of rail steel. This report presents the results of the fracture resistance tests conducted on defective rails to determine how the defect size, location, orientation, rail size, metallurgy, ambient temperature and the track stiffness related to the rail fracture load.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0889111251
• Supplemental Notes:
  • Funded jointly by CN Rail and CP Rail. See also 'Calibration of Railway Track for Dynamic Loads', TP 11569 E (CIGGT Rpt 91-7).
• Corporate Authors:

  Canadian Institute of Guided Ground Transport

  Queen's University
  Kingston, Ontario K7L 3N6,   Canada 

  Transportation Development Centre

  Complexe Guy Favreau, 200 Dorchester Blvd West, Suite 601
  Montreal, Quebec H2Z 1X4,   Canada 
• Authors:
  • Igwemezie, J O
  • KENNEDY, S L
  • Feng, X
  • Cai, Z
• Publication Date: 1992-12

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 42 p.

Subject/Index Terms

• TRT Terms: Deterioration; Dynamic loads; Dynamics; Fracture tests; Railroad tracks; Residual stress; Stresses; Thermal stresses
• Old TRIS Terms: Dynamic stresses; Residual stresses; Track deterioration
• Subject Areas: Maintenance and Preservation; Public Transportation; Railroads;

Filing Info

• Accession Number: 00634649
• Record Type: Publication
• ISBN: 0889111251
• Report/Paper Numbers: TP 11570 E, CIGGT Report No. 92-11
• Files: TRIS
• Created Date: Aug 17 1993 12:00AM