Cumulative charge penetration

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A description of Munroe's first shaped-charge experiment appears on p. At such standoffs, it breaks into particles which tend to tumble and drift off the axis of penetration, so that the successive particles tend to widen rather than deepen the hole. Kennedy and Associates, Inc. Wuelfken of the German Ordnance Office — were unlined explosive charges [29] and didn't produce a metal jet like the modern HEAT warheads. The location of the charge relative to its target is critical for optimum penetration for two reasons.

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Penetration Of Particulated Shaped

Bimetallic liners, usually zinc-lined copper, can be used. during jet formation the zinc layer vaporizes and a slug is not formed. the disadvantage is an increased cost and dependency of jet formation on the quality of bonding the two layers. This results in its small part of jet being projected at a lower velocity than jet formed later behind it. It was during the testing of this idea that, on February 4, , Thomanek conceived the shaped-charge explosive or Hohlladungs-Auskleidungseffekt hollow-charge liner effect. In a Russian scientist proposed that a shaped charge originally developed for piercing thick steel armor be adapted to the task of accelerating shock waves. The newer rod projectiles may be effective against the more heavily armored areas of MBTs. Retrieved 28 April

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Consequences of coaxial jet penetration performance

Please help improve this article by adding citations to reliable sources. By , Schardin believed that hollow-charge effects were due to the interactions of shock waves. Patent , for hemispherical cavity metal detonators to concentrate the effect of the explosion in an axial direction. When the Austrian government showed no interest in pursuing the idea, Thomanek moved to Berlin's Technische Hochschule , where he continued his studies under the ballistics expert Carl Julius Cranz.

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Description: Woodhead December 22, Cage armor can also cause the projectile to pitch up or down on impact, lengthening the penetration path for the shaped charge's penetration stream. Ammunition Anti-tank weapons Explosives engineering. In a sub-calibrated charge, this part of the device is effectively cut off, resulting in a shorter charge with the same performance. The deepest penetrations are achieved with a dense, ductile metal, and a very common choice has been copper. Patent , for hemispherical cavity metal detonators to concentrate the effect of the explosion in an axial direction. It is normally compounded with a few percent of some type of plastic binder, such as in the polymer-bonded explosive PBX LX, or with another less-sensitive explosive, such as TNT , with which it forms Octol. When the shaped charge detonates, most of its energy is focused on the steel plate, driving it forward and pushing the test gas ahead of it. The impact of a ball or slug EFP normally causes a large-diameter but relatively shallow hole, of, at most, a couple of CDs. All articles with dead external links Articles with dead external links from December Articles with permanently dead external links Webarchive template wayback links Articles with dead external links from January Articles needing additional references from October All articles needing additional references All articles with unsourced statements Articles with unsourced statements from October
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