Abstract
The damaged zone (the inelastic deformation zone) near a crack tip is the region where the stress–strain state (SSS) cannot be described by fundamental functions in the solution of the elastic problem of a crack (the Williams solution). For the description of SSS outside the damaged zone, the Williams expansion is used, which requires a number of regular terms to be considered. It is proposed to use digital optical techniques for measuring the SSS parameters in the crack zone to provide a large amount of experimental information in the form of displacement fields on the surface of the studied object directly in digital form.
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Original Russian Text © A.S. Chernyatin, I.A. Razumovskii, Yu.G. Matvienko, 2016, published in Zavodskaya Laboratoriya, Diagnostika Materialov, 2016, Vol. 82, No. 12, pp. 45–51.
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Chernyatin, A.S., Razumovskii, I.A. & Matvienko, Y.G. Evaluation of the Size of the Inelastic Deformation Zone at a Crack Tip Based on the Analysis of Displacement Fields. Inorg Mater 53, 1578–1584 (2017). https://doi.org/10.1134/S0020168517150055
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DOI: https://doi.org/10.1134/S0020168517150055