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A neutron diffraction investigation of residual stresses in rail ends after severe deformation of rail surfaces

Journal Article


Abstract


  • Insulated rail joints (IRJs) are a primary component of the rail track safety and signalling

    systems. Rails are supported by two fishplates which are fastened by bolts and nuts and, with the

    support of sleepers and track ballast, form an integrated assembly. IRJ failure can result from

    progressive defects, the propagation of which is influenced by residual stresses in the rail. Residual

    stresses change significantly during service due to the complex deformation and damage effects

    associated with wheel rolling, sliding and impact. IRJ failures can occur when metal flows over the

    insulated rail gap (typically 6-8 mm width), breaks the electrically isolated section of track and

    results in malfunction of the track signalling system.

Authors


  •   Rathod, Chandrahas (external author)
  •   Wexler, David
  •   Luzin, V (external author)
  •   Boyd, Paul (external author)
  •   Dhanasekar, Manicka (external author)

Publication Date


  • 2014

Citation


  • Rathod, C., Wexler, D., Luzin, V., Boyd, P. & Dhanasekar, M. (2014). A neutron diffraction investigation of residual stresses in rail ends after severe deformation of rail surfaces. Materials Science Forum, 777 213-218.

Scopus Eid


  • 2-s2.0-84896822358

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1979

Number Of Pages


  • 5

Start Page


  • 213

End Page


  • 218

Volume


  • 777

Place Of Publication


  • Switzerland

Abstract


  • Insulated rail joints (IRJs) are a primary component of the rail track safety and signalling

    systems. Rails are supported by two fishplates which are fastened by bolts and nuts and, with the

    support of sleepers and track ballast, form an integrated assembly. IRJ failure can result from

    progressive defects, the propagation of which is influenced by residual stresses in the rail. Residual

    stresses change significantly during service due to the complex deformation and damage effects

    associated with wheel rolling, sliding and impact. IRJ failures can occur when metal flows over the

    insulated rail gap (typically 6-8 mm width), breaks the electrically isolated section of track and

    results in malfunction of the track signalling system.

Authors


  •   Rathod, Chandrahas (external author)
  •   Wexler, David
  •   Luzin, V (external author)
  •   Boyd, Paul (external author)
  •   Dhanasekar, Manicka (external author)

Publication Date


  • 2014

Citation


  • Rathod, C., Wexler, D., Luzin, V., Boyd, P. & Dhanasekar, M. (2014). A neutron diffraction investigation of residual stresses in rail ends after severe deformation of rail surfaces. Materials Science Forum, 777 213-218.

Scopus Eid


  • 2-s2.0-84896822358

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1979

Number Of Pages


  • 5

Start Page


  • 213

End Page


  • 218

Volume


  • 777

Place Of Publication


  • Switzerland