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This article is cited in 2 scientific papers (total in 2 papers)
Physical science of materials
Destruction features of impactors made of a porous alloy based on tungsten with reinforcing filler when interacting with armored obstacles
A. N. Ishchenko, S. A. Afanas'eva, N. N. Belov, V. V. Burkin, S. V. Galsanov, V. Z. Kasimov, V. A. Kudryavtsev, Ya. D. Lipatnikova, L. S. Martsunova, K. S. Rogaev, A. Yu. Sammel, A. B. Skocirsky, N. T. Yugov Scientific Research Institute of Applied Mathematics and Mechanics by Tomsk State University
Abstract:
In this study, we perform calculations and experimental studies of the destruction of composite impactors from a porous tungsten–nickel–iron–cobalt alloy with 10 wt % tungsten titanium carbide at high-speed impact with steel barriers. In ballistic tests over a wide range of velocities, there is a significant excess of the penetration depth of these impactors into steel barriers compared to the mass-dimensional analog of a tungsten–nickel–iron alloy with 90% tungsten content. Based on the analysis of crater morphology and the structure of impactor fragments after introduction into the obstacle, we assume that the impactor is “self-sharpened” by localizing plastic deformation, which reduces the effective interaction area and increases the penetration depth. To describe the destruction, we modified the mathematical model of a porous ideal elastic-plastic body with a complex structure with the possibility of considering the adiabatic shear mechanism during interaction between the impactor and the obstacle.
Keywords:
composite materials, striker, barrier, penetration, experiment, mathematical modeling.
Received: 04.06.2019 Revised: 04.06.2019 Accepted: 24.09.2019
Citation:
A. N. Ishchenko, S. A. Afanas'eva, N. N. Belov, V. V. Burkin, S. V. Galsanov, V. Z. Kasimov, V. A. Kudryavtsev, Ya. D. Lipatnikova, L. S. Martsunova, K. S. Rogaev, A. Yu. Sammel, A. B. Skocirsky, N. T. Yugov, “Destruction features of impactors made of a porous alloy based on tungsten with reinforcing filler when interacting with armored obstacles”, Zhurnal Tekhnicheskoi Fiziki, 90:3 (2020), 434–440; Tech. Phys., 65:3 (2020), 414–419
Linking options:
https://www.mathnet.ru/eng/jtf5360 https://www.mathnet.ru/eng/jtf/v90/i3/p434
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