Influence of plastic deformation on fracture of an aluminum single crystal under shock-wave loading |
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Authors: | P A Zhilyaev A Yu Kuksin V V Stega?lov A V Yanilkin |
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Institution: | 1. Scientific Association for High Temperatures, Russian Academy of Sciences, ul. Izhorskaya 13/19, Moscow, 127412, Russia
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Abstract: | The plastic deformation and the onset of fracture of single-crystal metals under shock-wave loading have been studied using aluminum as an example by the molecular dynamics method. The mechanisms of plastic deformation under compression in a shock wave and under tension in rarefaction waves have been investigated. The influence of the defect structure formed in the compression wave on the spall strength and the fracture mechanism has been analyzed. The dependence of the spall strength on the strain rate has been obtained. |
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