Geodesic
A numerical study of the high-velocity interaction of rotating strikers having different head shapes with a barrier of finite thickness
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 87 (2024), pp. 120-134 Cet article a éte moissonné depuis la source Math-Net.Ru

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Numerical simulation methods are used to study the effect of rotation of cylindrical strikers made of high-strength steel on the high-velocity interaction with a steel barrier. Three types of striker head shapes are considered: ogival, hemispherical, and flat. The initial velocity of the striker is 1000 m/s, and the rotation frequency varies from 0 to 10000 revolutions per second. The striker-barrier interaction angle varies from 0$^{\circ}$ to 75$^{\circ}$. The modeling is carried out in a three-dimensional formulation using the author's EFES 2.0 software package. This allows the simulation of the fragmentation of interacting bodies with the formation of new contact and free surfaces, as well as the erosion of materials. The obtained results show that the difference in the penetrating power of rotating and non-rotating strikers is due to the presence of a stress-strain state in the rotating striker caused by rotational motion. The effect of the rotation of the striker on its penetrating power is studied. The conditions for the striker ricochet are determined for various striker-barrier interaction angles, rotation velocities, and head part shapes.
Mots-clés : destruction, ricochet, rotation.
Keywords: deformation, impact 
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     author = {P. A. Radchenko and A. V. Radchenko and S. P. Batuev},
     title = {A numerical study of the high-velocity interaction of rotating strikers having different head shapes with a barrier of finite thickness},
     journal = {Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika},
     pages = {120--134},
     year = {2024},
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     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTGU_2024_87_a9/}
}
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P. A. Radchenko; A. V. Radchenko; S. P. Batuev. A numerical study of the high-velocity interaction of rotating strikers having different head shapes with a barrier of finite thickness. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 87 (2024), pp. 120-134. http://geodesic.mathdoc.fr/item/VTGU_2024_87_a9/

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