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Zhurnal Tekhnicheskoi Fiziki, 2021, Volume 91, Issue 8, Pages 1227–1232
DOI: https://doi.org/10.21883/JTF.2021.08.51095.24-21
(Mi jtf4952)
 

Solids

Fracture of an aluminium shell of thick-walled composite cylinder under the action of the electric explosion of wire

V. A. Morozova, V. M. Katsa, G. G. Savenkovbc

a Saint Petersburg State University
b State Technological Institute of St. Petersburg (Technical University)
c Ioffe Institute, St. Petersburg
Abstract: Experiments outcome on the study the fracture of aluminium shell press-fitted with a cylinder made of poly(methyl methacrylate) (PMMA) is reported. The copper wire to be exploded placed on the axis of the cylinder and voltage of 20–22 kV from the charged capacitor applied to it. The pressure generated with exploded wire transmitted with a shock wave inside the material of the PMMA cylinder and then to the aluminium shell. Fracture of the PMMA cylinder and rapture were observed as a result of the explosion. We performed an estimation of the amplitude pressure generated with exploding wire and then transmitted to the PMMA cylinder and then form PMM cylinder to the shell based on the measured radial pressures as well as fracture strength of the shell. Microscopic study of the ruptured shell performed with “Tescan” scanning electron microscope and a “Discovery” optical stereomicroscope.
Keywords: electric explosion of wire, shock wave, radial pressure, fracture.
Received: 02.02.2021
Revised: 15.03.2021
Accepted: 18.03.2021
English version:
Technical Physics, 2021, Volume 66, Issue 10, Pages 1135–1140
DOI: https://doi.org/10.1134/S1063784221080120
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. A. Morozov, V. M. Kats, G. G. Savenkov, “Fracture of an aluminium shell of thick-walled composite cylinder under the action of the electric explosion of wire”, Zhurnal Tekhnicheskoi Fiziki, 91:8 (2021), 1227–1232; Tech. Phys., 66:10 (2021), 1135–1140
Citation in format AMSBIB
\Bibitem{MorKatSav21}
\by V.~A.~Morozov, V.~M.~Kats, G.~G.~Savenkov
\paper Fracture of an aluminium shell of thick-walled composite cylinder under the action of the electric explosion of wire
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2021
\vol 91
\issue 8
\pages 1227--1232
\mathnet{http://mi.mathnet.ru/jtf4952}
\crossref{https://doi.org/10.21883/JTF.2021.08.51095.24-21}
\elib{https://elibrary.ru/item.asp?id=46470570}
\transl
\jour Tech. Phys.
\yr 2021
\vol 66
\issue 10
\pages 1135--1140
\crossref{https://doi.org/10.1134/S1063784221080120}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85124740041}
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