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Study of the causes and identification of the dominant mechanisms of failure of bellows expansion joints used in district heating system pipelines at MOEK

  • Metals and Issues of Strength
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Abstract

The results of laboratory studies of material properties and of numerical and analytical investigations to assess the stress-strain state of the metal of the bellows expansion joints used in the district heating system pipelines at MOEK subjected to corrosion failure are presented. The main causes and the dominant mechanisms of failure of the expansion joints have been identified. The influence of the initial crevice defects and the operating conditions on the features and intensity of destruction processes in expansion joints used in the district heating system pipelines at MOEK has been established.

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Authors and Affiliations

  1. Geoterm-EM, ul. Lefortovskii val 24, Moscow, 111250, Russia

    G. V. Tomarov, V. N. Semenov, A. A. Shipkov & S. V. Shepelev

  2. MOEK, ul. Efremova 10, Moscow, 119048, Russia

    A. E. Nikolaev

Authors
  1. G. V. Tomarov
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  2. A. E. Nikolaev
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  3. V. N. Semenov
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  4. A. A. Shipkov
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  5. S. V. Shepelev
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Corresponding author

Correspondence to G. V. Tomarov.

Additional information

Original Russian Text © G.V. Tomarov, A.E. Nikolaev, V.N. Semenov, A.A. Shipkov, S.V. Shepelev, 2015, published in Teploenergetika.

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Tomarov, G.V., Nikolaev, A.E., Semenov, V.N. et al. Study of the causes and identification of the dominant mechanisms of failure of bellows expansion joints used in district heating system pipelines at MOEK. Therm. Eng. 62, 456–463 (2015). https://doi.org/10.1134/S0040601515060117

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  • DOI: https://doi.org/10.1134/S0040601515060117

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