Cumulative charge penetration brittle material

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Shaped charge

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Shaped charge - Wikipedia

A shaped charge is an explosive charge shaped to focus the effect of the explosive's energy. Various types are used to cut and form metal, initiate nuclear weapons , penetrate armor , and perforate wells in the oil and gas industry. Contrary to a widespread misconception possibly resulting from the acronym HEAT the shaped charge does not depend in any way on heating or melting for its effectiveness; that is, the jet from a shaped charge does not melt its way through armor, as its effect is purely kinetic in nature [3] - however the process does create significant heat and often has a significant secondary incendiary effect after penetration. The Munroe or Neumann effect is the focusing of blast energy by a hollow or void cut on a surface of an explosive. The earliest mention of hollow charges occurred in Franz Xaver von Baader — was a German mining engineer at that time; in a mining journal, he advocated a conical space at the forward end of a blasting charge to increase the explosive's effect and thereby save powder.
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Bulletin of the American Physical Society

Physics of the Solid State. October , Cite as. Mechanisms of manifestation of strength upon penetration of cumulative jets into metals and brittle materials have been analyzed on the basis of studying the kinetics of intrusion.
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