Shaped Charge

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shaped charge

[′shāpt ′chärj]
(ordnance)
An explosive charge with a shaped cavity that forces the impact of the explosion to the front so that there is an armor-piercing force. Also known as cavity charge.

Shaped Charge

 

a charge of explosive matter with a conical, spherical, or wedge-shaped hollow whose action is based on a cumulative effect.

The purpose of the shaped charge is the controlled destruction of solid materials. Shaped charges with a conical hollow—the height of which is equal to the diameter of the hollow opening and which has a metal lining (with a thickness of about one-thirtieth of the diameter of the hollow opening)—will pierce steel armor whose thickness is approximately four times the diameter of the hollow opening. Shaped charges are used in armor-piercing shells, in blasting caps, and for pulverizing odd-shaped rocks in quarries and breaking up other objects. A typical example of the use of shaped charges in military activity is in antitank rocket projectiles. These shells have a large hollow head which ensures that the shell explodes at the right distance from the obstacle so that its armor-piercing effect will be maximal. Another example is the linear shaped charge, which is elongated and has a metallined wedge-shaped hollow in the form of a trough. These charges are used to cut metal sheets, cores, and design elements, in particular when taking down surface and underwater structures.

G. I. POKROVSKII

References in periodicals archive ?
However, according to available data, the "danger cloud" generated by such an active system grenade only has a radius of between two and four metres, which is definitely less than the lethal radius generated by a vehicle that explodes if the hollow charge that has hit it generates secondary detonations.
This type of technology protects light vehicles from hollow charges threats, but has had the unexpected side-effect of boosting morale, with soldiers becoming more efficient in their missions.
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Where average armour penetration of hollow charges typically hover over seven or eight calibres, Ruag, unbelievable as it may sound, is currently toying with 10+ calibres penetrations.
Extremely simple and safe to use, these consist of small plastic encased hollow charges that are fixed on snap-on tripods to accurately aim them at the desired spot on the unexploded item.
This roughly follows the same principle as the hollow charge (or shaped charge) except that the copper liner is replaced with a tantalum lens that is forged into a high-speed slug.
As explained elsewhere in this survey, various solutions such as combining a hollow charge with a retarded grenade did not prove satisfactory.
But the facts simply do not support their hollow charges.