 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12804 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
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| In English (Mech. Solids): | | 4760 |
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| << Previous article | Volume 54, Issue 4 / 2019 | Next article >> |
| O.V. Dudko and V.E. Ragozina, "Dynamics of Unloading and Elastic Waves in a Medium with Accumulated Plastic Pre-Deformations," Mech. Solids. 54 (4), 523-532 (2019) |
| Year |
2019 |
Volume |
54 |
Number |
4 |
Pages |
523-532 |
| DOI |
10.3103/S0025654419040046 |
| Title |
Dynamics of Unloading and Elastic Waves in a Medium with Accumulated Plastic Pre-Deformations |
| Author(s) |
O.V. Dudko (Institute of Automation and Control Processes Far Eastern Branch of the Russian Academy of Sciences ul. Radio 5, Vladivostok, 690041 Russia, dudko@iacp.dvo.ru)
V.E. Ragozina (Institute of Automation and Control Processes Far Eastern Branch of the Russian Academy of Sciences ul. Radio 5, Vladivostok, 690041 Russia) |
| Abstract |
Approaches that allow one to describe the elastic dynamics of a medium (including unloading and elastic loading) in the presence of irreversible pre-deformations are proposed for a model of large elastoplastic deformations. Formulas based on a rotation tensor are obtained for calculating the redistribution of plastic strains. For dynamic elastic processes generating shock waves in an elastoplastic medium, the possible rates and types of plane shock waves are determined. It is shown that elastic shock waves create jumps in the field of plastic pre-deformations. Relations for calculating such discontinuities are obtained. The main properties of modeling self-similar solutions taking into account the proposed approach to the description of the kinematics of the medium and the possibility of distinguishing between elastic and plastic strains are considered. |
| Keywords |
final strains, elastoplastic medium, plastic pre-deformations, elastic shock waves, rotation tensor, plastic strain jump, unloading dynamics, dynamics of repeated elastic loading |
| Received |
23 October 2017 |
| Link to Fulltext |
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