Study On The Mechanism Of Penetrating Into Concrete Using Shaped Charge Structures

In modern war, a lot of costly goals (for example: The command post, control and communication blindage, the pier, the submarine build, the hangar and the airfield runway etc.) are mostly firm armored concrete structure. A low cost and effective way to destroy these goals is that the high energy explosive is sent into the armored concrete story and explode, the explosion result and fragmentation will destroy the equipment and living thing in the building, the airport runway, and pier, hangar and submarine build are destroyed seriously.On the basis of the basic principle of shaped charge and characteristic of the concrete material, penetration into concrete is studied. Influenced factors of penetration include: angle and material of the shaped charge liner, liner thickness and curvature radius, case of the shaped charge and stand off were studied.Test result shows : Only under the suitable angle, the comparatively satisfactory hole can be formed; For the same concrete target, the performance of the tungsten copper liner is better than that of the red copper liner; When 0.043< liner thickness / charge diameter <0.068,with liner thickness / charge diameter decreases, the penetration increases, the broken average diameter of hole is reduced thereupon ; As the liner curvature radius increases, the penetration decreases ;For the same shaped charge, with the case material was changed , the penetration changed. By contrast, the shaped charge with steel case has better f penetration; As the stand off increases ,the broken average diameter of hole reduces, and the penetration increases, however, when it exceed the best stand off, the penetration drops . Keyword: Shaped Charge, Concrete, Penetration, Shaped Charge Liner...