One-Dimensional Interaction of a Cylindrical Unloading Wave with a Moving Elastic–Plastic Boundary
- Authors: Gerasimenko E.A.1, Kovtanyuk L.V.1, Burenin A.A.2,3
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Affiliations:
- Institute of Automation and Control Processes, Far East Branch
- Institute of Engineering Science and Metallurgy, Far East Branch
- Komsomolsk-on-Amur State Technical University
- Issue: Vol 59, No 2 (2018)
- Pages: 316-325
- Section: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/161033
- DOI: https://doi.org/10.1134/S0021894418020153
- ID: 161033
Cite item
Abstract
The one-dimensional dynamic problem of the theory of large elastic–plastic deformations is considered for the interaction of an unloading wave with an elastic–plastic boundary. It is shown that before the occurrence of the unloading wave, the increasing pressure gradient leads to quasistatic deformation of the elasti©viscoplastic material filling the round tube, which is retained in the tube due to friction on its wall, resulting in the formation of near-wall viscoplastic flow and an elastic core. The unloading wave is initiated at the moment of the onset of slippage of the material along the inner wall of the tube. Calculations were conducted using the ray method of constructing approximate solutions behind strong discontinuity surfaces, and ray expansions of the solutions behind the cylindrical surfaces of discontinuities were obtained.
Keywords
About the authors
E. A. Gerasimenko
Institute of Automation and Control Processes, Far East Branch
Author for correspondence.
Email: gerasimenko@iacp.dvo.ru
Russian Federation, Vladivostok, 690041
L. V. Kovtanyuk
Institute of Automation and Control Processes, Far East Branch
Email: gerasimenko@iacp.dvo.ru
Russian Federation, Vladivostok, 690041
A. A. Burenin
Institute of Engineering Science and Metallurgy, Far East Branch; Komsomolsk-on-Amur State Technical University
Email: gerasimenko@iacp.dvo.ru
Russian Federation, Komsomolsk-on-Amur, 681005; Komsomolsk-on-Amur, 681013