Penetrative Warhead Annular Energetic Material Blast Effect
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Solution Overview
Problem
Existing armor-piercing warheads have limited energetic material quantity and blast effect, favoring projection effects over blast effects due to reduced explosive mass and envelope fragmentation.
Innovation Solution
A warhead design featuring a perforating bar secured to two flanges with an annular volume containing energetic material, surrounded by a cylindrical envelope made of thin synthetic or explosive material with glass or carbon fibers, utilizing a priming system for multipoint ignition to generate a blast effect without fragment projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the quantity of energetic material is increased to enhance blast effect, then the blast effect is improved, but the projection effect of fragments is reduced
Solution Approach 1:
The patent employs a thin envelope made of synthetic material or explosive material with thermosetting plastic binder integrating glass or carbon fibers. This thin film structure contains the energetic material while preventing excessive fragmentation, thereby containing the blast effect within the target and reducing harmful fragment projection outside the target.
Solution Approach 2:
The envelope is constructed using composite materials, specifically explosive material with thermosetting plastic binder integrating glass or carbon fibers. This composite structure provides both containment strength and controlled fragmentation characteristics, allowing the warhead to generate significant blast effect while minimizing uncontrolled fragment dispersion.
2Object-generated harmful factors
If the mass of explosive is reduced to favor projection effect of bar fragments, then the projection effect is improved, but the blast effect becomes very limited
Solution Approach 1:
The warhead is segmented into distinct functional zones: a perforating bar for penetration, an annular volume containing energetic material for blast effect, and a thin envelope for containment. This segmentation allows the explosive mass to be optimized for blast effect while the bar mass is optimized for fragment projection, with each component performing its specialized function without compromising the other.
3Strength
If a thick envelope is used to contain large quantity of energetic material, then the containment strength is improved, but the blast effect is reduced due to energy absorption by envelope fragmentation
Solution Approach 1:
The patent specifies a thin envelope rather than a thick one, made of synthetic material or explosive material with thermosetting plastic binder. This thin film provides sufficient containment for the energetic material while minimizing energy absorption through fragmentation, allowing maximum blast effect to be transmitted into the target.
Solution Approach 2:
The envelope uses composite material construction with thermosetting plastic binder integrating glass or carbon fibers, providing high strength-to-thickness ratio. This allows the envelope to be thin yet sufficiently strong to contain the energetic material and transmit the blast effect efficiently.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances perforation capacity and generates a significant blast effect behind a target or wall, optimizing lethality radius and reducing collateral damage in confined spaces.
Implementation Method 1
at least one energetic material placed in an annular volume defined by the two flanges and the bar... capable of generating a blast effect
Implementation Method 2
The priming means may then comprise at least one crown of detonation relays integral with at least one of the flanges... The priming means may comprise at least one priming explosive ring interposed between the bar and the energetic material
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to a military armor-piercing warhead (1) comprising a penetrating bar (2) surrounded at least partially by at least one energetic material (5), and including a means for initiating the energetic material (6). This military warhead (1) is characterized in that the bar is integral with two flanges (3a, 3b), a front flange (3a) and a rear flange (3b), the bar (2) extending forward of the front flange (3a), the flanges (3a, 3b) and the bar (2) defining an annular volume in which the energetic material(s) (5) is disposed, the military warhead comprising a cylindrical casing (10) surrounding the energetic material(s) (5), the casing (10) being made of a thin sheet of synthetic material or of a thermosetting plastic-bonded explosive material incorporating glass or carbon fibers in its composition.