Analysis of liner effect on shaped charge penetration into thick concrete targets

In this paper, the penetration performance of shaped charge in tandem warhead with different liner materials into thick concrete targets is investigated. For this purpose, the penetration process and the damage mechanism of concrete target by shaped charges with two different liner materials are analyzed by experimental and numerical methods. The used materials for two liners are aluminum and copper. Comparison between experimental and numerical results is in good agreement with each other. The obtained results suggest that both types of shaped charge are capable of destroying thick concrete targets, but aluminum conical liner has more significant effect in creating penetration depth, tunnel diameter rather than copper conical liner. Also, the shaped charge with aluminum conical liner develops very large spalling and scabbing area in the front and back of the concrete target. Hence a shaped charge with aluminum material liner is quite suitable for forward projectile of tandem warhead.