Mechanics of Solids (about journal) Mechanics of Solids
A Journal of Russian Academy of Sciences
in January 1966
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Print ISSN 0025-6544
Online ISSN 1934-7936

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IssuesArchive of Issues2020-1pp.62-68

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N.V. Skiba, "Change in the Mechanism of Plastic Deformation in Bimodal Materials with Graphene Inclusions," Mech. Solids. 55 (1), 62-68 (2020)
Year 2020 Volume 55 Number 1 Pages 62-68
DOI 10.3103/S0025654420010185
Title Change in the Mechanism of Plastic Deformation in Bimodal Materials with Graphene Inclusions
Author(s) N.V. Skiba (Institute for Problems in Mechanical Engineering of the RAS, St. Petersburg, 199078 Russia; Peter the Great St. Petersburg Polytechnic University, St. Petersburg, 195251 Russia,
Abstract A theoretical model for changing the plasticity mechanism in bimodal materials with graphene inclusions has been developed. Within the framework of the model, a theoretical study on the transition of plastic deformation from a nanocrystalline and/or ultrafine-grained matrix to the coarse-grained phase, which is inherent to bimodal materials has been performed. In particular, a theoretical description of the transition from deformation by twinning to lattice slip is made. The energy parameters and critical stresses characterizing the change in the mechanism of plastic deformation for graphene-metal composites with a bimodal structure are calculated
Keywords plasticity, strength, bimodal materials, graphene, deformation mechanisms, dislocations, disclinations
Received 09 September 2019Revised 13 September 2019Accepted 18 September 2019
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