DOI

The paper concerns assessment of the durability of a thin-walled elastic pipe subjected to uniform corrosion under internal and/or external pressures of different media with generally different temperatures. Stress-assisted corrosion of thin-walled pipes under pressure was earlier studied by other authors. Being based on the Laplace law, their solutions do not reflect the effect of internal and external pressure values themselves but only the pressure difference. However, as it is known, hydrostatic pressure may affect the corrosion rate. Unlike the solutions based on the Laplace law, we present a solution taking into account the effects of both internal and external pressures (not only their difference), a difference in the elastic stresses through the pipe wall thickness, and thermal stresses. In accordance with available experimental data, the rate of corrosion is supposed to be linearly dependent on the maximal principal stress at the corresponding surface and exponentially dependent on the temperature. Being presented in a closed form, the obtained solution can serve as a benchmark for numerical analysis and for design purposes.
Язык оригиналаанглийский
Страницы (с-по)933-941
Число страниц9
ЖурналProcedia Structural Integrity
Том33
Номер выпускаC
DOI
СостояниеОпубликовано - 2021
СобытиеThe 26th International Conference on Fracture and Structural Integrity - Turin, Италия
Продолжительность: 26 мая 202128 мая 2021
Номер конференции: 26
https://www.igf26.eu/igf26

    Предметные области Scopus

  • Сопротивление материалов
  • Общее машиностроение
  • Материаловедение (все)
  • Городское и структурное проектирование

    Области исследований

  • Mechanochemical corrosion, thermoelasticity, pipe, pressure vessel, lifetime

ID: 88668756