WORK-HARDENING BOLT HOLES IN RAIL ENDS

Causes of rail failure occurring at holes near the rail head are discussed. These are radial or star cracking caused by high shear stress in the web aggravated by presence of fish bolt holes. Stresses are caused by locomotives with small driving wheels. Improvement in rail resistance is the result of work hardening the surface of the holes. Accomplished by drilling undersize holes, and broaching or drifting with a spherical tool.

• Corporate Authors:

  International Railway Congress Association

  17-21 rue de Louvrain
  1000 Brussels,   Belgium 
• Authors:
  • Wise, S
• Publication Date: 1960-10

Media Info

• Pagination: p. 863-865
• Serial:
  • RAIL INTERNATIONAL

Subject/Index Terms

• TRT Terms: Bolts; Concrete hardening; Corrosion; Defects; Failure; Fatigue (Mechanics); Fatigue (Physiological condition); Hardness; Holes; Rail joints; Railroad rails; Shear properties; Stresses; Technology
• Geographic Terms: United Kingdom
• Old TRIS Terms: Bolt holes; Rail failure; Star cracks (Rails)
• Subject Areas: Railroads; Safety and Human Factors;

Filing Info

• Accession Number: 00033388
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 4 1994 12:00AM