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Neutron residual stress measurements in rails

Journal Article


Abstract


  • Rails were among the first objects of study by neutron

    diffraction strain measurement and the first experiments

    were done as early as the late 1980s [1, 2]. This interest

    is easy to explain: the problem of rail fracturing is critical

    from the public safety point of view and the penetrating

    ability of neutrons suggested the possibility of breakthrough

    experiments and fast progress in this field. It was

    well-established that residual stresses, both near-surface

    and interior, played a signifi cant role in the development

    of defects which led to rail failure. This suggested three

    distinct approaches of neutron diffraction strain measurement

    that could contribute to various problems of the rail

    industry. The first method was to map the complete triaxial

    stress distribution non-destructively in the interior

    of an intact rail, ideally before and after significant service.

    Another approach was to use slices, for example to

    characterize how different processing methods produce

    favourable or detrimental stress distributions in rails. A

    third technique was to make non-destructive measurements,

    but in critical and not very deep portions of rails,

    for example, to examine defects and their relation to rail

    failure in the top running surface of rails, e.g. “white

    layer” formation.

Authors


  •   Luzin, V (external author)
  •   Prask, H J. (external author)
  •   Gnaupel-Herold, T (external author)
  •   Gordon, Janey (external author)
  •   Wexler, David
  •   Rathod, Chandrahas (external author)
  •   Pal, Sourav (external author)
  •   Daniel, William (external author)
  •   Atrens, Andrejs (external author)

Publication Date


  • 2013

Citation


  • Luzin, V., Prask, H., Gnaupel-Herold, T., Gordon, J., Wexler, D., Rathod, C., Pal, S., Daniel, W. & Atrens, A. (2013). Neutron residual stress measurements in rails. Neutron News, 24 (3), 9-13.

Scopus Eid


  • 2-s2.0-84880724403

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1588

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 9

End Page


  • 13

Volume


  • 24

Issue


  • 3

Place Of Publication


  • United States

Abstract


  • Rails were among the first objects of study by neutron

    diffraction strain measurement and the first experiments

    were done as early as the late 1980s [1, 2]. This interest

    is easy to explain: the problem of rail fracturing is critical

    from the public safety point of view and the penetrating

    ability of neutrons suggested the possibility of breakthrough

    experiments and fast progress in this field. It was

    well-established that residual stresses, both near-surface

    and interior, played a signifi cant role in the development

    of defects which led to rail failure. This suggested three

    distinct approaches of neutron diffraction strain measurement

    that could contribute to various problems of the rail

    industry. The first method was to map the complete triaxial

    stress distribution non-destructively in the interior

    of an intact rail, ideally before and after significant service.

    Another approach was to use slices, for example to

    characterize how different processing methods produce

    favourable or detrimental stress distributions in rails. A

    third technique was to make non-destructive measurements,

    but in critical and not very deep portions of rails,

    for example, to examine defects and their relation to rail

    failure in the top running surface of rails, e.g. “white

    layer” formation.

Authors


  •   Luzin, V (external author)
  •   Prask, H J. (external author)
  •   Gnaupel-Herold, T (external author)
  •   Gordon, Janey (external author)
  •   Wexler, David
  •   Rathod, Chandrahas (external author)
  •   Pal, Sourav (external author)
  •   Daniel, William (external author)
  •   Atrens, Andrejs (external author)

Publication Date


  • 2013

Citation


  • Luzin, V., Prask, H., Gnaupel-Herold, T., Gordon, J., Wexler, D., Rathod, C., Pal, S., Daniel, W. & Atrens, A. (2013). Neutron residual stress measurements in rails. Neutron News, 24 (3), 9-13.

Scopus Eid


  • 2-s2.0-84880724403

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1588

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 9

End Page


  • 13

Volume


  • 24

Issue


  • 3

Place Of Publication


  • United States