Abstract
The dynamics of formation of stresses and strains and of strain rates due to compressive and shear deformation of about 103 sec−1 in impact tests performed with the use of a Hopkinson split bar is considered. At an impact speed of up to 400 m/sec the stresses and the strain rate before failure are shown to oscillate at a high frequency (40–100 Hz). It is shown that the fracture resistance of aluminum alloys AMg6 and V95, of steel KhVG, and of ceramics from silicon carbide and alumina differs substantially under static and dynamic loads; the difference also depends on the kind of stress state.
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References
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 51–54, January, 2007.
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Anastasiadi, G.P., Sil’nikov, M.V. Compressive and shear resistance of materials under dynamic rates of load application. Met Sci Heat Treat 49, 45–48 (2007). https://doi.org/10.1007/s11041-007-0008-7
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DOI: https://doi.org/10.1007/s11041-007-0008-7