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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2022, Volume 115, Issue 2, Pages 80–88
DOI: https://doi.org/10.31857/S1234567822020033 (Mi jetpl6589) 		 
This article is cited in 5 scientific papers (total in 5 papers)

OPTICS AND NUCLEAR PHYSICS

Laser shock wave: the plasticity and thickness of the residual deformation layer and the transition from the elastoplastic to elastic propagation mode

N. A. Inogamovabc, E. A. Perovc, V. V. Zhakhovskyac, V. V. Shepelevd, Yu. V. Petrovbe, S. V. Fortovad

a All-Russia Research Institute of Automatics, Moscow, 127030 Russia
b Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia
c Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, 125412 Russia
d Institute for Computer Aided Design, Russian Academy of Sciences, Moscow, 123056 Russia
e Moscow Institute of Physics and Technology (National Research University), Dolgoprudnyi, Moscow region, 141700 Russia
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DOI: https://doi.org/10.31857/S1234567822020033
Abstract: Intense laser radiation leads to irreversible changes in the crystal structure of a target, which are used in laser shock peening technologies. Processes determining the thickness of the residual deformation layer and related residual stresses are studied in this work. It is known that the end of peening is caused by the decaying of the laser shock wave. New information on the transformation of the wave from the elastoplastic to elastic propagation mode under a picosecond impact is obtained. The elastic shock wave is inefficient for peening. The classical configuration with a plastic jump and an elastic precursor ahead of it turns out to disappear during transformation. In this case, the leading edge of the expanding plastic layer gradually decreases its velocity below the bulk velocity of sound, is smeared inside the rarefaction wave, and stops.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 075-15-2020-785
This work was supported by the Ministry of Science and Higher Education of the Russian Federation (agreement no. 075-15-2020-785 on September 23, 2020, with the Joint Institute for High Temperatures, Russian Academy of -Sciences).
Received: 02.12.2021
Revised: 03.12.2021
Accepted: 03.12.2021
English version:
Journal of Experimental and Theoretical Physics Letters, 2022, Volume 115, Issue 2, Pages 71–78
DOI: https://doi.org/10.1134/S0021364022020047
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: N. A. Inogamov, E. A. Perov, V. V. Zhakhovsky, V. V. Shepelev, Yu. V. Petrov, S. V. Fortova, “Laser shock wave: the plasticity and thickness of the residual deformation layer and the transition from the elastoplastic to elastic propagation mode”, Pis'ma v Zh. Èksper. Teoret. Fiz., 115:2 (2022), 80–88; JETP Letters, 115:2 (2022), 71–78
Citation in format AMSBIB
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\paper Laser shock wave: the plasticity and thickness of the residual deformation layer and the transition from the elastoplastic to elastic propagation mode
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\pages 80--88
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