Stereofractographic Studies of a Fatigue Crack Propagation in a Low-Carbon Steel
Stereofractographic method is recommended for the analysis of the fatigue fracture three-dimensional microrelief and for the estimation of the area of true free surface formed at fracture. A new calculating formula for the estimation of microrelief excesses is proposed and the restrictions on the survey parameters connected with the physiological stereoscopic capabilities of human eyes are defined. Quantitative variations of the fatigue striations spacing and height are analyzed according to loading conditions.
KeywordsFatigue Crack Stress Intensity Factor Fatigue Fracture Fatigue Crack Propagation Fatigue Striation
Unable to display preview. Download preview PDF.
- 1.Krasowsky A.J., Ostash O.P., Stepanenko V.A. and Yarema S.Ya. The Effect of Low Temperatures on the Hate and Microfracto-graphic Features of the Development of a Fatigue Crack in Low-Carbon Steel.-Probl.Prochn.,No 4, 1977, pp 74–78.Google Scholar
- 2.Krasowsky A.J. and Stepanenko V.A. A Quantitative Stereoscopic Fractographic Study of the Mechanism of Fatigue Crack Propagation in Nicle. - Int. J. Fract., v. 15, No 3, 1979, P.P. 203– 215.Google Scholar
- 3.Stepanenko V.A. Raster and Transmission Stereoscopic Fracto-graphy of Fatigue Fractures. - Probl. Prochn., No 12, 1979, pp 89–91.Google Scholar