Underwater Damage Effect of Shaped Charges with Different Explosion Heights by Numerical Simulation

Abstract:
Shaped charges can cause serious damage to underwater targets. In order to study the effect of explosion height on the damage effect of underwater explosion of shaped charge, a simulation model of the damage to the circular targets caused by underwater explosion of shaped charge and blasting charge was established. Analyzed the difference between the underwater damage modes of the two charges, and compared with the experimental results to verify the credibility of the simulation model. Based on the simulation model of shaped charge, the damage effect of underwater explosion of small explosion high shaped charge is calculated and analyzed. The results show that a large amount of detonation energy is consumed during the forming process of the shaped-charge penetrator, which greatly reduces the power of the blasting effect of the underwater explosion of the charge. The speed of the shock wave in the water decays quickly. Under the condition of ensuring the penetration ability of the shaped-charge penetrator, reducing the explosion height can enhance the damage effect of shaped charge on single-shell targets under water.