PSI - Issue 14

A.N. Savkin et al. / Procedia Structural Integrity 14 (2019) 429–434 Author name / Structural Integrity Procedia 00 (2018) 000–000

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5. Conclusion The fatigue crack growth life estimation, especially in the near-threshold area of its growth, according to the Sunder model, showed that for the investigated aluminum alloy 2024-T3, the crack growth sensitivity to features of force action was revealed. The correlation factor calculated by the Sounder model and experimental data on the fatigue crack growth life for different types of loading was r = 0.97. Acknowledgements This paper was financially supported by the RFBR grant 17-08-01648 A, № 17-08-01742 A and the President of the Russian Federation grant MK-943.2017.8. References Panasiuk V. V., 1991. Mehanika kvazikhrupkogo razrusheniia materialov. Naukova dumka, Kiev, pp. 416. Kiciak A., Glinka G., Burns D. J., 2003. Calculation of stress intensity factors and crack opening displacements for cracks subjected to complex stress fields. Journal of Pressure Vessel Technology, Vol. 125, p. 260-266. Sunder R., 2012. Unraveling the Science of Variable Amplitude Fatigue. Journal of ASTM International, Vol. 9, №1, pp. 32. Sunder R., 2005. Fatigue as process of brittle micro-fracture. Fatigue and Fracture of Engineering Materials and Structures, Vol.28, №3, pp. 289 300. Savkin A.N., Andronik A.V., Koraddi R., 2016. Approximation Algorithms of Crack Growth Rate Curve Based on Crack Size Variations. Journal of Testing and Evaluation, Vol. 44, No. 1, pp. 310-319.