STUDY OF THE GROWTH OF TRANSVERSE FATIGUE CRACKS IN RAILS

ISSLEDOVANIYE ROSTA POPERECHNYKH USTALOSTNYKH TRESHCHIN V REL'SAKH

The growth of transverse fatigue cracks in the active rail parts of operating railways and during laboratory tests where the rails were subjected to vibrating loads were studied, and the data taken from service and laboratory-tested rails revealed that crack-growth propagation followed an exponential law. It was also observed that a change in the degree of the gap of the transverse fatigue fissure while in its slow stages of development does not improve detectability with the defectoscope. Data are given which indicate the fissure growth in an R-65 rail as a function of stress cycles in the bending load tests. A typical break in the rail along a transverse fatigue fissure is also shown.

• Corporate Authors:

  All-Union Scientific Res Inst of Railroad Transp

  3-aya Mytishchinskaya Ulitsa 10
  Moscow I-164,   USSR 
• Authors:
  • Kolotushkin, S A
  • Yoroshin, V L
• Publication Date: 1974

Language

• Russian

Media Info

• Features: Figures; References;
• Pagination: p. 45-47
• Serial:
  • Vestnik VNIIZT
  • Issue Number: 6
  • Publisher: All-Union Scientific Res Inst of Railroad Transp

Subject/Index Terms

• TRT Terms: Cracking; Defects; Detection and identification; Failure; Fatigue cracking; Inspection; Nondestructive tests; Railroad rails; Structural tests
• Uncontrolled Terms: Rail flaw detection
• Old TRIS Terms: Rail flaw propagation; Rail inspection; Rail tests
• Subject Areas: Bridges and other structures; Railroads;

Filing Info

• Accession Number: 00172601
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 29 1978 12:00AM