Ballistic Element Composite Body Metal Heads Fragmentation Control
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Solution Overview
Problem
Conventional ballistic elements cause significant collateral damage due to fragmentation upon impact, and there is a need for a design that reduces such damage while maintaining structural integrity and resistance.
Innovation Solution
A ballistic element composed of a composite non-metallic main body made from filament-wound materials like glass, aramid, or carbon fibers, with metal heads and a tubular plastic liner, featuring strengthening ribs and inserts for anchoring, designed to minimize fragmentation and enhance resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metallic main body is used in conventional ballistic elements, then structural strength and penetration capability are improved, but collateral damage increases due to fragmentation upon impact
Solution Approach 1:
The patent applies composite materials by constructing the main body from filament-wound composite material (combining fibers such as glass, aramid, carbon, or basalt with a resin matrix) instead of traditional metallic materials. This composite construction maintains the necessary structural strength and penetration capability while significantly reducing fragmentation upon impact, thereby resolving the contradiction between strength and collateral damage.
2Object-generated harmful factors
If filament-wound composite material is used for the main body, then fragmentation and collateral damage are reduced, but manufacturing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the main body into multiple discrete components: a tubular liner, strengthening ribs, terminal sections, and heads. These segmented components can be manufactured separately using optimized processes and then assembled, which reduces the overall manufacturing complexity despite using filament-wound composite material. The segmentation allows each component to be tailored to its specific functional requirements.
3Stability of the object's composition
If the main body is made completely in composite non-metallic material, then resistance to fragmentation is improved, but penetration capability may be compromised
Solution Approach 1:
The patent applies local quality by strategically placing metal heads at the terminal sections of the composite main body. The metal heads provide localized high strength and density specifically at the impact points where penetration capability is most critical, while the composite main body maintains fragmentation resistance throughout its length. This spatial differentiation of material properties resolves the contradiction between fragmentation resistance and penetration capability.
Data Source
AI summary
The ballistic element is made with a main body of non-metallic material, such as, from filaments of glass, aramid, carbon and basaltic fibers. The ballistic element also has heads of metal at opposite ends of the main body. A tubular liner of plastic may be disposed with the main body about an axial cavity for a detonating charge. The main body may also have one or more inserts for receiving one of an anchor bolt and a suspension component of an aircraft for use of the element as an aircraft bomb.