Scaled Experiment of the Detonation Control System for the High-Speed Penetration on Concrete

Abstract

The design scheme and fabrication technology of the detonation control system for the high-speed deep penetration need to be tested for reliability and effectiveness through shooting range tests. However, the shooting range tests of the high-speed deep penetration are so demanding and expensive that it is difficult for the detonation control system to be tested many times. This paper focuses on penetration characteristics of the detonation control system to put forward a laboratory-scaled experiment method with the low impact velocity. Independent parameters of projectile and target affecting the penetration characteristics are effectively analyzed and extracted. A multi-parameter programming method of the scaled experiment for high-speed deep penetration is established. By adjusting the key parameters, the loading conditions of the scaled experiment can be obtained, which can get the comparable deceleration curve with those of the high-speed deep penetration. Finally, the extreme working environment for the detonation control system in the high-speed deep penetration is simulated through the scaled experiment in the laboratory. The scaled experiment method can get the comparable deceleration peak and time history. It is highly economical, and the experimental process is also repeatable, which can provide a reliable reference for the protection design into the projectile.

Dynamics Analysis of Penetration against Pebble-Concrete Target

“…In order to enhance the strength of the structure, a number of stones, such as pebbles, are usually added to the concrete, and sometimes the size of the stones is relatively large. In the experiments, as shown in Figure 1 a,b, ellipsoidal pebbles can be seen in both crater and collapsed waste, and Figure 1 c shows the warhead surface condition after the penetration experiment [ 6 ]. The warhead has no obvious deformation, but these pebbles caused varying degrees of scratches on the surface of the warhead.…”