Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
A thin-walled pipe exposed to corrosion under pressure and nonuniform heating. / Evstafeva, I.A.; Pronina, Y.G.
в: Procedia Structural Integrity, Том 33, № C, 2021, стр. 933-941.Результаты исследований: Научные публикации в периодических изданиях › статья в журнале по материалам конференции › Рецензирование
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TY - JOUR
T1 - A thin-walled pipe exposed to corrosion under pressure and nonuniform heating
AU - Evstafeva, I.A.
AU - Pronina, Y.G.
N1 - Conference code: 26
PY - 2021
Y1 - 2021
N2 - 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.
AB - 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.
KW - Mechanochemical corrosion
KW - thermoelasticity
KW - pipe
KW - pressure vessel
KW - lifetime
KW - Mechanochemical corrosion
KW - thermoelasticity
KW - pipe
KW - pressure vessel
KW - lifetime
KW - Lifetime
KW - Pressure vessel
KW - Thermoelasticity
KW - Pipe
UR - http://www.scopus.com/inward/record.url?scp=85120670237&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/a535fac0-51b2-319e-953d-49f7f59eeb8d/
U2 - 10.1016/j.prostr.2021.10.104
DO - 10.1016/j.prostr.2021.10.104
M3 - Conference article
VL - 33
SP - 933
EP - 941
JO - Procedia Structural Integrity
JF - Procedia Structural Integrity
SN - 2452-3216
IS - C
T2 - 26th International Conference on Fracture and Structural Integrity, IGF26 2021
Y2 - 26 May 2021 through 28 May 2021
ER -
ID: 88668756