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Features of the development of a main crack in a natural heterogeneous material under mechanical loading, revealed using X-ray computed microtomography
Russian version
Damaskinskaya E.E. 1, Hilarov V.L. 1, Krivonosov Yu.S. 2, Buzmakov A.V. 2, Asadchikov V.E. 2, Frolov D.I.1
1Ioffe Institute, St. Petersburg, Russia
2National Research Center “Kurchatov Institute”, Moscow, Russia
Email: Kat.Dama@mail.ioffe.ru
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The aim of this study was to directly observe and analyze the morphological features of a main crack developing in samples of natural heterogeneous materials under mechanical stress. X-ray computed microtomography was used to detect defects in the volume. A unique feature of the experiments was that tomographic imaging was performed while the sample was under load. Based on the analysis of tomographic slices, three-dimensional models of the defect structure were constructed, the fractal dimension and relative volume of the microcrack system were calculated. Keywords: X-ray computed microtomography, main crack evolution, fractal dimension, relative defect volume.
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