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Calculation of the stress intensity factor for a hydrogenated plastic crystal with a crack

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Abstract

Time variation of the stress intensity factor in the tensile mode is calculated for a hydrogenated plastic crystal with a crack. The calculation takes into account the influence of dissolved interstitial hydrogen on the evolution of plastic deformation at the crack tip, determined by the competition of mechanisms related to (i) incommensurate dimensions of dissolved hydrogen atoms and interstitial voids in the crystal lattice and (ii) a decrease in the yield point caused by the hydrogen-induced plasticity. The numerical results for an α-Fe crystal are presented.

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Authors and Affiliations

  1. Institute of Mechanics and Applied Mathematics, Rostov State University, Rostov-on-Don, 344104, Russia

    D. N. Karpinskii & S. V. Sannikov

Authors
  1. D. N. Karpinskii
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  2. S. V. Sannikov
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__________

Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 29, No. 20, 2003, pp. 16–20.

Original Russian Text Copyright © 2003 by Karpinski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Sannikov.

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Karpinskii, D.N., Sannikov, S.V. Calculation of the stress intensity factor for a hydrogenated plastic crystal with a crack. Tech. Phys. Lett. 29, 843–845 (2003). https://doi.org/10.1134/1.1623864

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  • DOI: https://doi.org/10.1134/1.1623864

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