Experimental investigation into the failure behaviour of insulated rail joints

Ratchetting failure of railhead material adjacent to the endpost which is placed in the air gap between the two rail ends at insulated rail joints causes significant economic problems to the railway operators who rely on the proper functioning of these joints for train control using the signalling track circuitry. The ratchetting failure is a localised problem and is very difficult to predict even when complex analytical methods are employed. This paper presents a novel experimental technique that enables measurement of the progressive ratchetting. A special purpose test rig was developed for this purpose and commissioned by the Centre for Railway Engineering at Central Queensland University. The rig also provides the capability of testing of the wheel/rail rolling contact conditions. The results provide confidence that accurate measurement of the localised failure of railhead material can be achieved using the test rig.

Media Info

  • Pagination: 8p. ; PDF
  • Monograph Title: Rail - the core of integrated transport: CORE 2012: conference on railway engineering, 7-10 September 2012, Perth, Western Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01532122
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Jul 29 2014 11:56AM