Destruction Features of Impactors Made of a Porous Alloy Based on Tungsten with Reinforcing Filler When Interacting with Armored Obstacles
| Autor: | S. V. Galsanov, A. B. Skosyrskii, A. Yu. Sammel, V. V. Burkin, N. T. Yugov, V. A. Kudryavtsev, L. S. Martsunova, V. Z. Kasimov, Ya. D. Lipatnikova, S. A. Afanas’eva, N. N. Belov, A. N. Ishchenko, K. S. Rogaev |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Range (particle radiation) Titanium carbide Materials science Physics and Astronomy (miscellaneous) Alloy Composite number chemistry.chemical_element engineering.material Tungsten 01 natural sciences 010305 fluids & plasmas Adiabatic shear band chemistry.chemical_compound chemistry 0103 physical sciences engineering Composite material Porosity Penetration depth |
| Zdroj: | Technical Physics. 65:414-419 |
| ISSN: | 1090-6525 1063-7842 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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