Geodesic
Simulation of dynamic channel-angular pressing of copper samples with allowance for experimental data of loading
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 60 (2019), pp. 141-151 Cet article a éte moissonné depuis la source Math-Net.Ru

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One of the urgent problems in the field of materials science is producing of metals and alloys with an ultrafine-grained (UFG) structure. Metals with UFG structure are characterized by improved physical and mechanical properties, such as increased strength, cold brittleness, and radiation stability. This paper considers a method of dynamic channel-angular pressing (DCAP) which is used to obtain the UFG structure. The purpose of this work is to simulate numerically the DCAP process of a copper sample using experimental data of loading. The experimental data available in the scientific literature have been analyzed to specify the initial conditions as follows: the pressure acting on the rear part of the sample is $P_0=310$ MPa and the initial velocity of the sample can be varied in a wide range. Numerical simulation is performed using a modified finite element method within the framework of elastoplastic model of a damaged medium. The numerical computations have shown that the copper sample successfully undergoes the DCAP process at the following initial parameters: $v_0 = 170$ m/s and $P_0 = 310$ MPa. Almost the entire sample is exposed to uniform intense plastic deformations, except for the front and rear parts. Also, a slight elongation of the sample occurs along the longitudinal axis, and the temperature rises up to $600$ K in the contact region of the sample with the walls of the horizontal part of the channel.
Keywords: severe plastic deformation, dynamic channel-angular pressing, finite element method. 
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     author = {D. V. Yanov and A. S. Bodrov and N. V. Pakhnutova and S. A. Zelepugin},
     title = {Simulation of dynamic channel-angular pressing of copper samples with allowance for experimental data of loading},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {141--151},
     year = {2019},
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D. V. Yanov; A. S. Bodrov; N. V. Pakhnutova; S. A. Zelepugin. Simulation of dynamic channel-angular pressing of copper samples with allowance for experimental data of loading. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 60 (2019), pp. 141-151. http://geodesic.mathdoc.fr/item/VTGU_2019_60_a10/

[1] R. Z. Valiev, R. K. Islamgaliev, I. V. Alexandrov, “Bulk nanostructured materials from severe plastic deformation”, Progress in Materials Science, 45:2 (2000), 103–189 | DOI

[2] V. A. Gorel'skii, S. A. Zelepugin, “Numerical modeling of powder compaction with axisymmetrical impact”, Soviet Powder Metallurgy and Metal Ceramics, 31:4 (1992), 291–295 | DOI

[3] I. G. Brodova, V. I. Zel'dovich, I. V. Khomskaya, E. V. Shorokhov, A. N. Petrova, A. E. Kheyfets, I. G. Shirinkina, N. Yu. Frolova, Structure and properties of submicrocrystalline and nanocrystalline non-ferrous metals and alloys under extreme loading, Izdatel'stvo UMC UPI, Ekaterinburg, 2018, 363 pp.

[4] A. V. Stolbovsky, V. V. Popov, E. N. Popova, R. M. Falakhutdinov, E. V. Shorokhov, “Specific features of strain behavior of bronzes under dynamic channel-angular pressing”, International Journal of Applied and Fundamental Research, 2016, no. 11-5, 858–863

[5] I. V. Khomskaya, V. I. Zel'dovich, N. Yu. Frolova, A. E. Kheifets, E. V. Shorokhov, D. N. Abdullina, “Effect of high-speed dynamic channel angular pressing and aging on the microstructure and properties of Cu-Cr-Zr alloys”, IOP Conf. Series: Materials Science and Engineering, 447 (2018), 012007 | DOI

[6] T. Fagan, R. Das, V. Lemiale, Y. Estrin, “Modelling of equal channel angular pressing using a mesh-free method”, J. Materials Science, 47 (2012), 4514–4519 | DOI

[7] E. N. Moskvichev, V. A. Skripnyak, V. V. Skripnyak, A. A. Kozulin, D. V. Lychagin, “Influence of structure to plastic deformation resistance of aluminum alloy 1560 after groove pressing treatment”, Letters on Materials, 6:2 (2016), 141–145 | DOI | MR

[8] T. Uehara T, “Molecular dynamics simulation of grain refinement in a polycrystalline material under severe compressive deformation”, Materials Sciences and Applications, 8 (2017), 918–932 | DOI

[9] I. G. Rusyak, M. A. Ermolaev, “Wavelet-analysis application in problems about work of the regulated propulsion system”, Bulletin of Kalashnikov ISTU, 2014, no. 4 (64), 162–165

[10] A. N. Shipachev, E. V. Il'ina, S. A. Zelepugin, “Deformation of titanium samples under dynamic channel-angular pressing”, Deformatsiya i razrushenie materialov, 2010, no. 4, 20–24

[11] A. N. Shipachev, A. S. Zelepugin, E. V. Il'ina, S. A. Zelepugin, “Simulation of dynamic channel-angular pressing of titanium samples using two-piston scheme of loading”, Deformatsiya i razrushenie materialov, 2012, no. 10, 7–11

[12] A. S. Bodrov, N. V. Olimpieva, A. S. Zelepugin, S. A. Zelepugin, “Numerical simulation of dynamic channel-angular pressing of titanium specimens”, Tomsk State University Journal of Mathematics and Mechanics, 2015, no. 5 (37), 56–63 | DOI

[13] A. S. Bodrov, S. A. Zelepugin, “Numerical simulation of dynamic channel-angular pressing of copper specimens”, IOP Conf. Series: Materials Science and Engineering, 177 (2017), 012056 | DOI

[14] S. A. Zelepugin, A. S. Bodrov, N. V. Pakhnutova, “The diagram of the dynamic channelangular pressing of titanium specimen”, International Journal of Applied and Fundamental Research, 2017, no. 11-1, 28–31 | DOI

[15] G. I. Kanel', S. V. Razorenov, A. V. Utkin, V. E. Fortov, Shock wave phenomena in condensed matter, Yanus-K, Moscow, 1996, 407 pp.