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An analytical-experimental method has been used to investigate the penetrative capability of cylindrical VNZh-90 and VNZhK + 75% VK8 with flat heads and conical noses in interaction with a steel barrier in the velocity range of 1200–1300 m/s. Calculation results are presented for interaction of the considered strikers with steel barriers at impact velocities of up to 2000 m/s. [ABSTRACT FROM AUTHOR]

High-temperate vacuum sintering has been used to obtain porous composite tungsten carbide alloy TNIC (W–Ni–Fe–Co) + 69 wt.% WC. The results of investigations into the microstructure and physical-mechanical properties of the alloy are presented. An experimental investigation has been conducted into the high-velocity interaction of cylindrical strikers made of this material with steel plates in the velocity range of 1200–1400 m/s. [ABSTRACT FROM AUTHOR]

A mathematical model has been constructed for the behavior of a tungsten carbide alloy on the basis of TC8 (tungsten carbide, 92%; cobalt, 8%) and WNFC (W–Ni–Fe–Co), or TNIC (tungsten, nickel, iron, and cobalt), in conditions of shock-wave loading. A scheme has been suggested for the process of mass loss and self-sharpening of the striker in dynamic interaction with the target. The computational-experimental method has been used to investigate the capacity of cylindrical strikers made of this composite to penetrate into a steel target at an impact velocity of 1260 m/s with account for the dependence of yield stress on the intensity of plastic deformation considering both the stage of strengthening and the stage of its structural softening in the process of deformation. [ABSTRACT FROM AUTHOR]

Results are presented of an experimental-theoretical investigation of the motion in water of supercavitating strikers made of steel and aluminum and tungsten (TNI, i.e., tungsten, nickel, and iron) alloys in a broad velocity range. Estimates have been made of the ranges of velocities of entry into water in which the investigated supercavitating strikers from various materials are not destroyed and preserve the original shape. Experimental and computational data have been obtained on the value of deviation of the trajectories of two simultaneously starting from each other supercavitating strikers at the initial stage of their group motion in water depending on the materials they are made of. [ABSTRACT FROM AUTHOR]