Determination of the Residual Service Life of a Torsion Bar Under the Influence of Corrosive Media

被引：4

作者：

Andreikiv, O. Ye ^{[1
]}

Dolinska, I. Ya ^{[2
]}

Nastasiak, S., V ^{[1
]}

Shefer, M. S. ^{[2
]}

机构：

[1] Franko Natl Univ Lviv, Lvov, Ukraine

[2] Natl Acad Sci Ukraine, Karpenko Physicomech Inst, Lvov, Ukraine

来源：

MATERIALS SCIENCE | 2022年 / 57卷 / 05期

关键词：

torsion bar; residual life; stress-corrosion crack; corrosive medium; computational model;

D O I：

10.1007/s11003-022-00589-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a computational model for the determination of the residual service life of a torsion bar (cylinder) subjected to long-term twisting under the action of corrosive media. The model is based on the deduced differential equation for the kinetics of propagation of a stress-corrosion crack from its initial size to the ultimate size. We determine the residual service life of a torsion bar made of 45KhN2\MFA steel and containing a semielliptic crack whose plane is directed at an angle of 45 degrees to its axis under the action of long-term twisting.

引用

页码：633 / 639

页数：7

共 10 条

[1] Determination of the Period of Subcritical Growth of Small Plane High-Temperature Creep Cracks in Structural Elements [J].