2020, 4 (37)

Operation of nuclear industry facilities

Article NameAssessment of Stress-strain State of NPP Pipeline Metal Parts and Elements
AuthorsA.K. Adamenkov*1, I.N. Veselova**2
Address

*Rostov nuclear power plant, Volgodonsk, Rostov region, Russia 347360

**Volgodonsk Engineering Technical Institute the branch of National Research Nuclear University «MEPhI»

Lenin St., 73/94, Volgodonsk, Rostov region, Russia 347360

1orcid id 0000-0001-7342-0231

WoS Researcher ID: O-1921-2018

е-mail: anri_61@ mail.ru

2orcid id 0000-0001-5867-5690

WoS Researcher ID: M-1893-2018

е-mail: INVeselova@mail.ru

AbstractAs part of the experimental assessment of the stress-strain state of pipeline elements at the NPP using devices based on the magnetoanisotropic method, the criteria for the parameters of the main mechanical stress difference characterizing the increased probability of erosion and corrosion wear were obtained. It is determined that the high level of the main mechanical stress difference values in combination with the results of processing measurements on the parameters of the first derivative and the gradient of the main mechanical stress difference, depending on the scanning step in the grid nodes, are additional criteria for detecting a potentially dangerous area of erosion and corrosion wear.
Keywordsmagnetoanisotropy, mechanical stress, gradient approach, derivative of stresses, local areas
LanguageRussian
References
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