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Ordnance device for launching failure prone fragments

a technology ordnance devices, which is applied in the direction of weapons, ammunition projectiles, projectiles, etc., can solve the problems of failure prone materials being comprised, and achieve the effect of facilitating the exploitation of failure prone materials

Inactive Publication Date: 2005-04-28
NAVY SEC OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE THE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] An object of the present invention is an ordnance device capable of launching low-strength, brittle fragments so as to avoid one or more damage modes inherent to such projectiles.
[0019] The present invention facilitates the exploitation of failure prone materials within ordnance systems.

Problems solved by technology

Likewise, failure prone materials may be comprised of brittle, chemically active or inert materials.

Method used

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  • Ordnance device for launching failure prone fragments
  • Ordnance device for launching failure prone fragments
  • Ordnance device for launching failure prone fragments

Examples

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Embodiment Construction

[0048] Referring now to FIG. 1, an exemplary arrangement of the present invention, referred herein as an ordnance device 1, is shown having an explosive charge 2 immediately adjacent to and contacting a buffer element 3 immediately adjacent to and contacting a plurality of fragments 4 immediately adjacent to and contacting a wrap element 5. The term fragment 4 refers to preformed projectiles composed of a failure prone composition unless otherwise indicated. Components are assembled and mechanically fastened or adhered via methods and techniques understood in the art. For example, buffer element 3 and wrap element 5 may be planar disposed sheets that are conformally applied over explosive charge 2 and fragments 4, respectively, thereby confining and supporting the fragments 4. It is likewise possible of secure a cylindrically shaped buffer element 3 and wrap element 5 over explosive charge 2 and fragments 4, respectively.

[0049] The explosive charge 2 projects fragments 4 to a desir...

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Abstract

The present invention is an ordnance device capable of launching discrete failure prone fragments in a coherent, controllable fashion. The described device is comprised of an explosive charge, a buffer element, a plurality of preformed failure prone fragments, and a wrap element in the described order. Buffer element separates failure prone fragments from the explosive charge so as to protect the fragments from damage by explosive detonation products and to reduce an incident pressure wave communicated into the fragments by the detonation. Wrap element further reduces the pressure within fragments by imparting a compressive pulse into the fragments thereby offsetting the negative phase of the incident pressure wave.

Description

FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0001] The invention described herein may be manufactured and used by and for the Government of the United States of America for Governmental purposes without the payment of any royalties thereon and therefore.CROSS REFERENCE TO RELATED APPLICATIONS [0002] None. BACKGROUND OF THE INVENTION [0003] 1. Field of the Invention [0004] The present invention generally relates to an ordnance device for launching failure prone fragments in a coherent fashion. Specifically, the invention described herein mitigates launch-induced conditions within and along such fragments. [0005] 2. Background [0006] A typical ordnance device explosively launches a plurality of inert fragments in a controlled fashion so as to insure impact between one or more fragments and a target. Inert fragments are typically composed of a strong, non-brittle material to insure coherent launch. Fragment strength limits the deposition of kinetic energy within a target to a small vol...

Claims

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Application Information

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IPC IPC(8): F42B12/24F42B12/32
CPCF42B12/32F42B12/24
Inventor LACY, E. WILLISWAGGENER, SAMUEL S.GRUDZA, MAURICE E.JANN, DAVID C.FORSYTH, COLIN
Owner NAVY SEC OF THE UNITED STATES OF AMERICA AS REPRESENTED BY THE THE
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