Аналитическая оценка долговечности тороидальной оболочки при механохимической коррозии с учетом затухания коррозии

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Аналитическая оценка долговечности тороидальной оболочки при механохимической коррозии с учетом затухания коррозии. / Пронина, Юлия Григорьевна.

In: ВЕСТНИК САНКТ-ПЕТЕРБУРГСКОГО УНИВЕРСИТЕТА. ПРИКЛАДНАЯ МАТЕМАТИКА. ИНФОРМАТИКА. ПРОЦЕССЫ УПРАВЛЕНИЯ, Vol. 22, No. 2, 09.07.2026, p. 276-288.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{be0b5dd7af154f958b664fc4d48c6cb3,

title = "Аналитическая оценка долговечности тороидальной оболочки при механохимической коррозии с учетом затухания коррозии",

abstract = "This paper presents an approximate analytical solution to the problem of the lifetime of a toroidal shell operating under mechanochemical corrosion conditions under internal and external pressure, taking into account the possible inhibition of the corrosion process, using the Dolinsky — Pavlov corrosion kinetics model. The obtained estimates are applicable when the maximum stress is reached in the toroid{\textquoteright}s intrados (in the absence of bending stresses), before the onset of corrosion localization. The solution allows evaluating the influence of the internal and external pressures, not just their difference. It is shown that the often-overlooked influence of the minimum of these pressures can become quite significant for decelerated corrosion, reducing the service life if the external pressure exceeds the internal one. The need for a comprehensive durability assessment, using various criteria and methods, is emphasized.",

keywords = "curved pipes, mechanochemical corrosion, pressure vessels, service life, stress corrosion, toroidal shell",

author = "Пронина, {Юлия Григорьевна}",

year = "2026",

month = jul,

day = "9",

doi = "10.21638/spbu10.2026.207",

language = "русский",

volume = "22",

pages = "276--288",

journal = " ВЕСТНИК САНКТ-ПЕТЕРБУРГСКОГО УНИВЕРСИТЕТА. ПРИКЛАДНАЯ МАТЕМАТИКА. ИНФОРМАТИКА. ПРОЦЕССЫ УПРАВЛЕНИЯ",

issn = "1811-9905",

publisher = "Издательство Санкт-Петербургского университета",

number = "2",

}

RIS

TY - JOUR

T1 - Аналитическая оценка долговечности тороидальной оболочки при механохимической коррозии с учетом затухания коррозии

AU - Пронина, Юлия Григорьевна

PY - 2026/7/9

Y1 - 2026/7/9

N2 - This paper presents an approximate analytical solution to the problem of the lifetime of a toroidal shell operating under mechanochemical corrosion conditions under internal and external pressure, taking into account the possible inhibition of the corrosion process, using the Dolinsky — Pavlov corrosion kinetics model. The obtained estimates are applicable when the maximum stress is reached in the toroid’s intrados (in the absence of bending stresses), before the onset of corrosion localization. The solution allows evaluating the influence of the internal and external pressures, not just their difference. It is shown that the often-overlooked influence of the minimum of these pressures can become quite significant for decelerated corrosion, reducing the service life if the external pressure exceeds the internal one. The need for a comprehensive durability assessment, using various criteria and methods, is emphasized.

AB - This paper presents an approximate analytical solution to the problem of the lifetime of a toroidal shell operating under mechanochemical corrosion conditions under internal and external pressure, taking into account the possible inhibition of the corrosion process, using the Dolinsky — Pavlov corrosion kinetics model. The obtained estimates are applicable when the maximum stress is reached in the toroid’s intrados (in the absence of bending stresses), before the onset of corrosion localization. The solution allows evaluating the influence of the internal and external pressures, not just their difference. It is shown that the often-overlooked influence of the minimum of these pressures can become quite significant for decelerated corrosion, reducing the service life if the external pressure exceeds the internal one. The need for a comprehensive durability assessment, using various criteria and methods, is emphasized.

KW - curved pipes

KW - mechanochemical corrosion

KW - pressure vessels

KW - service life

KW - stress corrosion

KW - toroidal shell

UR - https://www.mendeley.com/catalogue/04dd118d-e5b5-31f3-b836-3eea8ec6ee53/

U2 - 10.21638/spbu10.2026.207

DO - 10.21638/spbu10.2026.207

M3 - статья

VL - 22

SP - 276

EP - 288

JO - ВЕСТНИК САНКТ-ПЕТЕРБУРГСКОГО УНИВЕРСИТЕТА. ПРИКЛАДНАЯ МАТЕМАТИКА. ИНФОРМАТИКА. ПРОЦЕССЫ УПРАВЛЕНИЯ

JF - ВЕСТНИК САНКТ-ПЕТЕРБУРГСКОГО УНИВЕРСИТЕТА. ПРИКЛАДНАЯ МАТЕМАТИКА. ИНФОРМАТИКА. ПРОЦЕССЫ УПРАВЛЕНИЯ

SN - 1811-9905

IS - 2

ER -

ID: 160874326