Особенности скоростного торцевого удара металлических пластин

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Особенности скоростного торцевого удара металлических пластин
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Features of high-speed face blow of flat blade projectiles
© V.A.Veldanov1 , S.V. Fedorov1, M.A. Maximov1,
. Daurskikh 1, . Sotskiy1, V.S. Kozlov2
1Bauman Moscow State Technical University, Moscow, 105005, Russia
2Research Industrial Enterprise «Contour», Moscow, 105120, Russia
The article presents experimental results and numerical simulations of flat blade projec-
tiles high-speed interaction with massive semi-infinite duraluminium targets. We studied
interaction velocity in the range of 800…1500 mps and two values of projectile thickness
h =1.5 and 3 mm. Width and length of the projectiles were 7.7h and 14h for the 3mm-
thick blades, and 15.5h and 28h for 1.5mm-thick blades. Influence of impact velocity on
depth, volume and shape of the cavern formed in the target was investigated. Influence of
the sabot on the results of the interaction was also studied. It was shown that transverse
dimensions of the cavern are equal to 5...9h, while the longitudinal dimensions can be
equal to 1.35...2.0 of the plate width. A comparison of the investigation results of blade
projectile and axisymmetric projectile interaction with target showed that planar projec-
tiles had advantages in depth of penetration and in width of the formed crater over cylin-
drical ones.
Keywords: blade projectiles, sabot, high-speed interaction, target, duraluminium, cavern.
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