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Structural and temporal features of high-rate deformation of metals

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Abstract

Dynamic yield stress values predicted within the structural–temporal approach based on the incubation time concept and those found from the empirical Johnson–Cook formula and its known modification are compared with the examples of steel, nickel, and an aluminum alloy subjected to high-rate plastic deformation. It is shown that the structural–temporal approach is an efficient and convenient tool for calculations in a much wider range of deformation rates.

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Authors and Affiliations

  1. St. Petersburg State University, Universitetskii pr. 28, Peterhof, St. Petersburg, 198504, Russia

    N. S. Selyutina & Yu. V. Petrov

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

    Yu. V. Petrov

Authors
  1. N. S. Selyutina
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  2. Yu. V. Petrov
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Correspondence to N. S. Selyutina.

Additional information

Original Russian Text © N.S. Selyutina, Yu.V. Petrov, 2017, published in Doklady Akademii Nauk, 2017, Vol. 472, No. 6, pp. 666–669.

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Selyutina, N.S., Petrov, Y.V. Structural and temporal features of high-rate deformation of metals. Dokl. Phys. 62, 102–105 (2017). https://doi.org/10.1134/S1028335817020136

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  • DOI: https://doi.org/10.1134/S1028335817020136

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