Predicting the time of corrosion damage to a plate with a deep double-sided external undercut under stretching

International Scientific-Technical Conference on Innovative Engineering Technologies, Equipment and Materials 2018

材料科学;工业技术（总论）

Talibly, L.H.^1^2 ; Imranov, F.B.^3 ; Jafarova, A.M.^4

Azerbaijan National Aviation Academy, Mardakan Prospect 30, 1045, Azerbaijan^1

Institute of Mathematics and Mechanics, National Science Academy of Azerbaijan (NSAA), B.Vagabzade street 9, AZ1141, Azerbaijan^2

Institute of Physics of NSAA, G. Javid Avenue 131, AZ1141, Azerbaijan^3

Institute of Systems Management of NSAA, B.Vagabzade Street 9, AZ1141, Azerbaijan^4

关键词: Corrosion damage;    Corrosion process;    Corrosion wear;    Corrosive environment;    Corrosive materials;    Effect of stress;    Homogeneous plates;    Stress state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/570/1/012100/pdf
DOI  :  10.1088/1757-899X/570/1/012100

来源: IOP

【 摘 要 】

The statement is formulated and the solution of the problem of determining the time of corrosion destruction of an elastic homogeneous plate with a deep bilateral external recess is given. A plate of corrosive material is subjected to bilateral stretching in a corrosive environment in a direction perpendicular to the axis of the recesses. The well-known solution of the problem of the stress state of this plate, obtained by H. Neuber, is used. The following cases are considered: A) the effect of stress, which occurs in the plate when it is stretched, on the corrosion process is negligible; b) the effect of plate voltage on the corrosion process is significant. In both cases, the dependences of the change in the area of the narrowest cross-section of the plate on time are found. The time of complete corrosion wear and the time of corrosion cracking of the plate before its complete wear are also determined.