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Effect of Defects on the Stress–Strain State of Heat-Exchange Tubes of Steam Generators*

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International Applied Mechanics Aims and scope

During the operation of a steam generator (SG), the heat-exchange tubes (HET) and SG surface are sludged because of the inappropriate chemical and thermal conditions. The sludge accumulation can cause different defects, such as wall thickness reduction, cracks, pitting, etc. In combination with the effect of the sludge weight on the tubes and restraints for the design movement of tubes, defects change the stress–strain state of the HET substantially. To reliably evaluate the stress–strain state of the HET where sludge is accumulated and there are defects, appropriate studies were performed. The results of studying the effect of cracks on the stress–strain state and integrity of the HET are presented.

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Authors and Affiliations

  1. S. P. Timoshenko Institute of Mechanics, National Academy of Sciences of Ukraine, 3 Nesterova Str., Kyiv, 03057, Ukraine

    P. Z. Lugovyi

  2. State Scientific and Technical Center for Nuclear and Radiation Safety of the State Nuclear Regulatory Committee of Ukraine, 35–37 V. Stusa Str., Kyiv, 03142, Ukraine

    O. P. Shugailo, Ya. D. Kruglii & R. I. Moskalishin

Authors
  1. P. Z. Lugovyi
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  2. O. P. Shugailo
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  3. Ya. D. Kruglii
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  4. R. I. Moskalishin
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Corresponding author

Correspondence to O. P. Shugailo.

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Translated from Prikladnaya Mekhanika, Vol. 57, No. 2, pp. 70–83, March–April 2021.

* This study was sponsored by the budgetary program Support of Priority Areas of Research (KPKVK 6541230).

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Lugovyi, P.Z., Shugailo, O.P., Kruglii, Y.D. et al. Effect of Defects on the Stress–Strain State of Heat-Exchange Tubes of Steam Generators*. Int Appl Mech 57, 184–195 (2021). https://doi.org/10.1007/s10778-021-01072-8

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  • DOI: https://doi.org/10.1007/s10778-021-01072-8

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