Energetic Fiber for Explosive Cord Loading Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing explosive cords face challenges in precisely controlling energetic reactions and delays due to limitations in the distribution and adhesion of reactive materials, particularly in maintaining consistent loading and preventing powder accumulation during extrusion.
Innovation Solution
An explosive cord design featuring a carrier fiber with a reactive material, predominantly organic explosive, coated or embedded within a polymeric tube, where the reactive material is adhered using a binder, ensuring consistent distribution and preventing powder migration during extrusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If reactive material is coated on the tube inner surface during extrusion, then the explosive cord can be manufactured continuously, but powder accumulation and inconsistent loading occur
Solution Approach 1:
A carrier fiber is introduced as an intermediary substrate to hold the reactive material particles. The fiber acts as a mediator between the reactive material and the tube, allowing particles to be transported and deposited without direct coating during extrusion, thereby preventing powder accumulation while maintaining continuous manufacturing capability
Solution Approach 2:
The carrier fiber is designed with porous structure that can absorb and retain reactive material particles. The porosity allows the fiber to hold a controlled amount of explosive particles, ensuring consistent loading density and preventing powder migration during the extrusion process
2Reliability
If reactive material particles are used, then the explosive cord achieves required energetic performance, but powder migration and inconsistent loading occur
Solution Approach 1:
The invention creates a composite structure where reactive material particles are combined with carrier fiber material. This composite approach allows the reactive particles to maintain their energetic properties while the fiber matrix provides structural stability and prevents particle migration, ensuring both performance and compositional uniformity
Solution Approach 2:
The carrier fiber provides localized containment for reactive material particles along its length. Each section of the fiber holds a controlled local quantity of explosive particles, ensuring uniform distribution throughout the explosive cord while maintaining the required energetic performance at each location
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
This design enables precise control over energetic reactions, maintains consistent reactive material loading, and prevents powder accumulation, enhancing the reliability and performance of explosive cords in aerospace and other applications.
Implementation Method 1
the reactive material is adhered using a binder
Data Source
AI summary
An explosive cord is disclosed. In various embodiments, the explosive cord includes a tube having a tube inner surface and a tube outer surface, the tube inner surface defining a hollow interior that extends along a length of the tube; a carrier fiber disposed within the hollow interior of the tube, the carrier fiber having a carrier fiber exposed surface area; and a reactive material disposed on the carrier fiber exposed surface area.