Interaction of elongated cylindrical strikers made of tungsten alloy VNZh90 with a finite-thickness plate made of the D16T aluminum alloy is numerically modeled. The influence of the shape of the head of the striker on the process and the result of interaction is investigated. Interaction velocity range 300–600 m/s and interaction angles from 0 to 75 degrees are considered. The behavior of the materials of the striker and barrier is described by an elastoplastic model. Limit value of intensity of plastic deformations is used as fracture criterion. Modeling is carried out in a three-dimensional setting using the finite element method using the author's algorithm and the EFES 2.0 software complex, which allows modeling the fragmentation of interacting bodies with the formation of new contact and free surfaces, erosion fracture of materials. The adequacy of the mathematical model and numerical algorithm is confirmed by the good agreement of experimental and numerical results. The interaction of the striker with the flat and cone shape of the head part with the barrier was investigated, the conditions under which the striker ricochets off the barrier were determined.
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Radchenko, P.A., Radchenko, A.V. & Batuev, S.P. Modeling the Interaction of a Heavy-Alloy Impactor with an Aluminum Alloy Barrier. Russ Phys J 66, 180–185 (2023). https://doi.org/10.1007/s11182-023-02923-2
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DOI: https://doi.org/10.1007/s11182-023-02923-2