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Deformation resistance and fracture of iron over a wide strain rate range |
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| Authors: | G I Kanel S V Razorenov G V Garkushin S I Ashitkov P S Komarov M B Agranat |
| Institution: | 1. Joint Institute for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13-2, Moscow, 125412, Russia 2. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432, Russia |
| Abstract: | The results of measurements of the decay of an elastic precursor in iron at the distances from 0.13 to 10 mm and the spall strength of the samples with such thicknesses have been compared with similar data for the nanometer-scale samples. The decay has been described by a unique dependence whose differentiation gives the relationship between the initial plastic strain rate in the range from 103 to 109 s?1 and the compression stress in the elastic shock wave from 1.5 to 27.5 GPa. The dynamic breaking strength (spall strength) varies in this range of shock-wave load time from 1.5 to 20 GPa. |
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