PROBABILITY AND COST ANALYSIS OF TACHE OVAL FATIGUE DEFECTS IN TANGENT AND CURVED TRACK UNDER HEAVY AXLE LOAD CONDITIONS

The tache oval or transverse defect is shown to be the limiting factor controlling the economic life of rail on tangent track. An approximate fracture mechanics analysis is presented which indicates the relative importance of the various applied loads causing non-metallic inclusions to grow. The probability distributions of actual failures from tangent and curved track are presented. These distributions supply data for the economic analysis which determines the optimum or minimum cost time to re-rail tangent track.

  • Corporate Authors:

    International Railway Congress Association

    17-21 rue de Louvrain
    1000 Brussels,   Belgium 
  • Authors:
    • Townend, P H
  • Publication Date: 1980-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00322557
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Dec 11 1980 12:00AM