About the regularities of fatigue fracture and fatigue strength due to the influence of asymmetry of the tension cycle
Keywords:fatigue fracture, the asymmetry cycle ratio, 45 steel, titanium alloy PT-3V, the curve of fatigue
AbstractThe fatigue curves are obtained and the regulari-ties of the effect of the tensile cycle asymmetry in the range –2 ≤ R ≤ 0.5 on the length and position of the transi-tion section of the fatigue curve of steel 45 and titanium alloy PT-3V are investigated. Diagrams of limit amplitudes for the studied alloys are constructed. A method for calcu-lating the position and length of the transition stage of the fatigue curve is proposed.
MECHANICS OF SOLID BODIES