TY - JOUR

T1 - Modelling the general corrosion of a steel tube under its own weight

AU - Stareva, Irina

AU - Pronina, Yulia

PY - 2017/1/1

Y1 - 2017/1/1

N2 - A vertically standing or hanging long initially cylindrical tube is considered subjected to mechanochemical corrosion under its own weight. The corrosion rate is supposed to be a linear function of mechanical stress. The problem is reduced to a system of differential and integral equations that are solved numerically. It is clear that the own weight of the tube gives a rather small increase in the corrosion rate for relatively short tubes. The following questions arise. At what length of the tube do we need to take into account its own weight for the life assessment? Is there any simple approach to this consideration? These questions are investigated in the present paper.

AB - A vertically standing or hanging long initially cylindrical tube is considered subjected to mechanochemical corrosion under its own weight. The corrosion rate is supposed to be a linear function of mechanical stress. The problem is reduced to a system of differential and integral equations that are solved numerically. It is clear that the own weight of the tube gives a rather small increase in the corrosion rate for relatively short tubes. The following questions arise. At what length of the tube do we need to take into account its own weight for the life assessment? Is there any simple approach to this consideration? These questions are investigated in the present paper.

KW - lifetime

KW - Mechanochemical corrosion

KW - own weight

KW - pipe

UR - http://www.scopus.com/inward/record.url?scp=85047194414&partnerID=8YFLogxK

U2 - 10.1016/j.prostr.2017.11.008

DO - 10.1016/j.prostr.2017.11.008

M3 - Article

VL - 6

SP - 48

EP - 55

JO - Procedia Structural Integrity

JF - Procedia Structural Integrity

SN - 2452-3216

ER -