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IssuesArchive of Issues2014-6pp.666-672

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Vl.Vas. Balandin, Vl.Vl. Balandin, A.M. Bragov, L.A. Igumnov, A.Yu. Konstantinov, and A.K. Lomunov, "High-Rate Deformation and Fracture of Steel 09G2S," Mech. Solids. 49 (6), 666-672 (2014)
Year 2014 Volume 49 Number 6 Pages 666-672
DOI 10.3103/S0025654414060089
Title High-Rate Deformation and Fracture of Steel 09G2S
Author(s) Vl.Vas. Balandin (Research Institute for Mechanics, Lobachevsky State University of Nizhni Novgorod, pr-t†Gagarina†23, korp.†6, GSP-1000, Nizhni Novgorod, 603600, balandin@mech.unn.ru)
Vl.Vl. Balandin (Research Institute for Mechanics, Lobachevsky State University of Nizhni Novgorod, pr-t†Gagarina†23, korp.†6, GSP-1000, Nizhni Novgorod, 603600, rustydog2007@yandex.ru)
A.M. Bragov (Research Institute for Mechanics, Lobachevsky State University of Nizhni Novgorod, pr-t†Gagarina†23, korp.†6, GSP-1000, Nizhni Novgorod, 603600, bragov@mech.unn.ru)
L.A. Igumnov (Research Institute for Mechanics, Lobachevsky State University of Nizhni Novgorod, pr-t†Gagarina†23, korp.†6, GSP-1000, Nizhni Novgorod, 603600, igumnov@mech.unn.ru)
A.Yu. Konstantinov (Research Institute for Mechanics, Lobachevsky State University of Nizhni Novgorod, pr-t†Gagarina†23, korp.†6, GSP-1000, Nizhni Novgorod, 603600, konstantinov@mech.unn.ru)
A.K. Lomunov (Research Institute for Mechanics, Lobachevsky State University of Nizhni Novgorod, pr-t†Gagarina†23, korp.†6, GSP-1000, Nizhni Novgorod, 603600, lomunov@mech.unn.ru)
Abstract The results of experimental and theoretical studies of steel 09G2S deformation and fracture laws in a wide range of strain rates and temperature variations are given. The dynamic deformation curves and the ultimate characteristics of plasticity in high-rate strain were determined by the Kolsky method in compression, extension, and shear tests. The elastoplastic properties and spall strength were studied by using the gaseous gun of calibre 57 mm and the interferometer VISAR according to the plane-wave experiment technique. The data obtained by the Kolsky method were used to determine the parameters of the Johnson-Cook model which, in the framework of the theory of flow, describes how the yield surface radius depends on the strain, strain rate, and temperature.
Keywords steel, Kolsky method, compression, extension, shear, spall, strain rate, temperature, plasticity model, identification
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Received 28 June 2014
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