Shaped charge including structures and compositions having lower explosive charge to liner mass ratio

摘要

An improved shaped charge apparatus and method of manufacturing is provided including a composite wave shaper, a main charge, and a metal liner. An exemplary embodiment's wave shaper can be adapted to manipulate a shock front so that an interaction of the main charge and the metal liner occurs lower along the liner's profile such that the apparatus restricts an initial elongation of a resulting jet. An embodiment can have a thickness of the metal liner sufficient to provide a mass necessary to generate a first size diameter aperture in a target material. An embodiment an also provide a combination of the liner thickness and shock interaction point resulting in the jet having an improved length to diameter ratio among other advantages. An embodiment of the invention can also provide other advantages such as an explosive to mass ratio of less than 3 or 2 to 1.

主权项

1. A shaped charge apparatus comprising:
a wave shaper assembly; a booster explosive; a main charge; and a metal liner; wherein said wave shaper assembly is adapted to manipulate a shock front from said booster explosive such that an initial interaction of said main charge and said metal liner occurs along a portion of said metal liner distal to said wave shaper assembly and thereby restricts an initial elongation of a resulting jet; wherein a thickness of said metal liner provides a mass necessary to generate a first size diameter aperture in a target material; wherein said wave shaper assembly comprises a composite wave shaper, a stainless steel plate adjacent to said booster explosive, and an air gap formed between said composite wave shaper and said stainless steel plate.