Abstract
Steel 09G2S specimens are subjected to cyclic tests, and real-time monitoring of the initiation of a fatigue crack and its growth kinetics is performed by dynamic speckle interferometry. The time averaging of speckles are used to reveal a relation between the parameters that characterize random and deterministic changes in the relief height and speckle images of the surface near the notch during crack initiation.
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Original Russian Text © A.P. Vladimirov, I.S. Kamantsev, V.E. Veselova, E.S. Gorkunov, S.V. Gladkovskii, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 86, No. 4, pp. 85–90.
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Vladimirov, A.P., Kamantsev, I.S., Veselova, V.E. et al. Use of dynamic speckle interferometry for contactless diagnostics of fatigue crack initiation and determining its growth rate. Tech. Phys. 61, 563–568 (2016). https://doi.org/10.1134/S106378421604023X
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DOI: https://doi.org/10.1134/S106378421604023X