The deformation and stress state due to overrolling near the rough surface of a rail is studied. Then a criterion for the inclination of a shear localization zone (SLZ) is introduced. Furthermore, the recent finding that the crack tip driving forces becomes infinite for a crack embedded in a SLZ is recalled. Experimental observation shows also that the fracture toughness in the SLZ is significantly reduced. All these facts point to the development of a crack, the so-called head check if it arises in a regular pattern, in the SLZ, whose predicted direction agrees well with observations.


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    Title :

    A possible origin of surface cracks in rails


    Contributors:
    Fischer, F D (author) / Daves, W (author)


    Publication date :

    2011-11-01


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    A possible origin of surface cracks in rails

    Fischer, F D | Online Contents | 2011


    A possible origin of surface cracks in rails

    Fischer, F.D. / Daves, W. | British Library Online Contents | 2011


    Internal transverse cracks and fissures in rails

    Job, Robert | Engineering Index Backfile | 1914


    Internal transverse cracks and fissures, in rails

    Job, Robert | Engineering Index Backfile | 1915