Insensitive Munition Initiation Canister Threaded Fuze Well Engagement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for disposing of insensitive munitions are time-consuming and tedious, especially when dealing with a stockpile, as they require significant energetic materials or physical packing to initiate detonation, making it inefficient for explosive ordnance disposal forces.
Innovation Solution
An insensitive munition initiation canister with a cylindrical body and threads for engaging the munition's fuze well, capable of retaining an explosive charge, such as C-4, to facilitate detonation, reducing the need for extensive energetic materials and allowing for quicker disposal of multiple rounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to dispose of insensitive munitions by placing large amounts of energetics or physically packing the fuze well with explosives, then the detonation capability is sufficient, but the process becomes time-consuming and tedious when dealing with stockpiles
Solution Approach 1:
The invention divides the explosive charge into two distinct segments: a primary explosive charge in the first body that initiates detonation, and a secondary explosive charge in the second body that sustains and propagates the detonation wave. This segmentation allows the primary charge to be small and easy to insert, while the secondary charge ensures reliable detonation of insensitive munitions, thus resolving the contradiction between reliable detonation and fast disposal speed
Solution Approach 2:
The initiation canister is pre-assembled with both explosive charges positioned and configured before insertion into the munition. The first and second bodies are pre-connected, and the detonation cord is pre-routed through the second body. This preliminary preparation eliminates time-consuming field assembly operations when disposing of stockpiles, thereby improving productivity while maintaining reliable detonation capability
2Reliability
If conventional methods require physically packing the fuze well with explosives to generate enough pressure and time for full reaction, then the insensitive fill can be consumed, but the process is tedious for stockpile disposal
Solution Approach 1:
The invention changes the parameters of the explosive system by using a two-stage charge configuration with different explosive types and densities. The primary charge uses a high-density explosive optimized for generating immediate high pressure, while the secondary charge uses a slower-burning explosive that sustains the reaction. This parameter change allows complete consumption of insensitive fill without requiring prolonged packing operations, reducing field time while maintaining reaction completeness
Solution Approach 2:
The detonation cord serves as an intermediary element that bridges the primary and secondary explosive charges. It transmits the detonation wave from the first body to the second body, ensuring seamless energy transfer and complete reaction of the insensitive fill. This intermediary mechanism eliminates the need for manual packing operations, significantly reducing loss of time during stockpile disposal
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 canister enables Joint Service Explosive Ordnance Disposal personnel to dispose of a stockpile of insensitive munitions in a timely and less tedious manner by providing a structured means to initiate detonation efficiently, reducing field time and energetic material usage.
Implementation Method 1
an explosive charge having a detonation capability sufficient to detonate an insensitive munition
Data Source
AI summary
An insensitive munition initiation canister includes a first cylindrical body having an external surface, which includes a first set of threads arranged circumferentially around the first cylindrical body, and a second cylindrical body connected to the first cylindrical body including an external surface having a second set of threads arranged circumferentially around the second cylindrical body. The first cylindrical body includes a first internal region set to retain an explosive charge having a detonation capability sufficient to detonate an insensitive munition. The first cylindrical body is set to sit inside a munition fuze well. The threads of the first cylindrical body are set to engage the munition fuze well.