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Statistical characteristics of the multiscale spallation of metal targets during dynamic loading and their relation to the mechanical properties of the materials

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Abstract

The damages that form in plane targets made of three steel grades during their shock loading at a rate of 100–650 m/s are statistically processed, and the size distributions of defects are determined. In the general case, the damage accumulation in this strain rate range is shown to be not self-similar. The dynamic fracture toughnesses of the steels are determined, and this characteristic is found to be related to a change in the mechanical properties of the material and the particle velocity range in it on the structural level of the meso II scale.

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Authors and Affiliations

  1. Research Institute of Structural Materials “Prometei”, St. Petersburg, 191015, Russia

    B. K. Barakhtin

  2. Institute of Problems of Mechanical Engineering, Russian Academy of Sciences, Vasil’evskii Ostrov, Bol’shoi pr. 61, St. Petersburg, 199178, Russia

    Yu. I. Meshcheryakov

  3. Research Institute “Poisk”, Murino, Leningrad oblast, 188162, Russia

    G. G. Savenkov

Authors
  1. B. K. Barakhtin
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  2. Yu. I. Meshcheryakov
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  3. G. G. Savenkov
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Original Russian Text © B.K. Barakhtin, Yu.I. Meshcheryakov, G.G. Savenkov, 2010, published in Zhurnal Tekhnicheskoĭ Fiziki, 2010, Vol. 80, No. 1, pp. 79–84.

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Barakhtin, B.K., Meshcheryakov, Y.I. & Savenkov, G.G. Statistical characteristics of the multiscale spallation of metal targets during dynamic loading and their relation to the mechanical properties of the materials. Tech. Phys. 55, 79–84 (2010). https://doi.org/10.1134/S1063784210010135

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  • DOI: https://doi.org/10.1134/S1063784210010135

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