Summary
Inelastic behaviour of metals and alloys has been investigated in a wide range of variation of strain rates. An equation has been proposed for the rate of formation of dislocations in which all possible mechanisms for the production and annigilation of dislocations have been taken into account. The possibility for a common description of static and dynamic experiments on the basis of certain mechanism of propagation and multiplication of dislocations has been examined. The problems of quasi-static compression in short rods at a constant strain rate, propagation of Luders front in rods, propagation of elastoplastic waves in rods and plates have been numerically solved. Using the models developed, two stages in the creep and superplastic deformation in metals and alloys of fine-grain structure have been studied.
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© 1979 Springer-Verlag, Berlin/Heidelberg
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Nigmatulin, R.I., Kholin, N.N. (1979). Dislocation Concepts in the Mechanics of Rapid Deformation of Metals. In: Kawata, K., Shioiri, J. (eds) High Velocity Deformation of Solids. International Union of Theoretical and Applied Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-67208-8_6
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DOI: https://doi.org/10.1007/978-3-642-67208-8_6
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