Metal Augmented Charge Solid Fuel Dispersal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fuel-air explosive devices using liquid hydrocarbons face handling and application challenges due to leakage hazards and structural weaknesses, and they do not effectively derive energy from the interaction with the environment, limiting their performance and lethality against targets.
Innovation Solution
A metal augmented charge (MAC) device using 85-90% flaked aluminum powder and 8-15% polytetrafluorethylene, dispersed as fine particles to maximize surface area interaction with the environment, providing a high-energy yield without the need for a secondary initiation device and offering improved performance, density, and safety features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid hydrocarbons are used in conventional fuel-air explosive devices, then the explosive can disperse to form a fuel-air cloud, but the device suffers from leakage hazards and structural weaknesses
Solution Approach 1:
The invention changes the physical state of the fuel from liquid hydrocarbon to solid combustible metal particles. This parameter change eliminates the need for liquid-containing tanks, thereby removing leakage hazards and structural weakness issues while maintaining the fuel-air explosive function.
Solution Approach 2:
The invention uses combustible metal particles that are dispersed and consumed in the explosion, replacing the need for durable tank structures. The fuel itself serves as both the energy source and the containment medium, eliminating separate tank components that would require strength and leakage prevention.
2Use of energy by moving object
If conventional high explosive is used to disperse fuel, then the fuel cloud is formed, but the energy yield is limited and a secondary initiation device is required
Solution Approach 1:
The invention combines the fuel dispersion function and the initiation function into a single integrated system. The combustible metal particles serve both as the fuel source and as the mechanism for cloud formation and ignition, eliminating the need for separate high explosive charges and secondary initiation devices.
Solution Approach 2:
The combustible metal particles are designed to self-disperse and self-ignite when exposed to the environment, eliminating the need for external high explosive charges and secondary initiation systems. The fuel cloud formation and ignition are achieved through the inherent properties of the metal particles themselves.
3Force
If reactive metal is used in shaped charge explosives, then penetration capability is achieved, but the metal moves as a cohesive mass limiting energy from metal-air reaction
Solution Approach 1:
The invention segments the reactive metal into fine particles instead of using it as a cohesive mass. This segmentation dramatically increases the surface area of the metal exposed to air, enabling extensive metal-air reactions that release significant energy while the particles are dispersed throughout the environment.
Solution Approach 2:
The invention changes the physical form of the reactive metal from a cohesive mass (as in shaped charges) to fine dispersed particles. This parameter change transforms the metal's interaction with the environment, allowing for extensive surface area contact with air and maximizing the energy released from metal-air reactions.
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
The MAC device achieves a 930% increase in energy compared to TNT per equal volume, with enhanced blast characteristics and increased lethality against targets, while being safer, more cost-effective, and easier to handle and recycle, with a longer shelf life and reduced toxicity.
Implementation Method 1
a high explosive secondary charge is detonated to generate a shock wave, which initiates detonation of the dispersed medium
Implementation Method 2
a high explosive secondary charge is detonated to generate a shock wave
Implementation Method 3
The available atmospheric oxygen mixed with the cloud reacts instantly with the detonation products and generates the fuel-air explosive effect
Implementation Method 4
reacts instantly with the detonation products and generates the fuel-air explosive effect
Data Source
AI summary
This invention relates to an apparatus for explosively dispersing particles of reactive metals into the atmosphere to form a fuel-air explosive. Also, this invention relates to a composition, which enhances the performance of metal augmented charge (MAC) devices. The metal augmented charge (MAC) includes flaked aluminum powder and polytetrafluorethylene. The MAC is pressed into solid billets. A preferred embodiment of the present invention involves a system with heavy-walled warhead, which comprises a canister and a cylinder of MAC disposed in the canister, so that said cylinder is in contact with the interior wall of the canister. Further, a high explosive is disposed in the cylinder with a fuze in direct contact with the high explosive, in such a way that the fuze detonates the high explosive.