Hybrid Slat Armor with Piercing Elements for RPG Neutralization

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Solution Overview

Problem

Existing slat armor designs are inadequate in neutralizing hollow-charge projectiles like RPGs, as they often fail to efficiently penetrate the warhead's envelope and may not effectively distribute bending stresses upon impact.

Innovation Solution

The hybrid slat armor features piercing elements with multiple sharp edges and angled surfaces, a tapered design, and a composite base layer with a protective cover, which enhances penetration capability and reduces bending stresses by allowing the slat units to bend perpendicular to the impact direction, while the spacer layer and attachment modules provide flexibility and modular adjustability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If rigid slat armor is used to neutralize RPG warheads, then penetration capability is improved, but bending stress resistance deteriorates

Engineering Contradiction:
Improvepenetration capabilityVSAvoidbending stress
Core Design Contradiction:
StrengthVSStress or pressure

Solution Approach 1:

The slat unit combines metal sub-slats with a composite base layer and protective cover, creating a hybrid structure where the metal provides penetration capability while the composite materials manage stress distribution and flexibility

Inventive Principle:
Principle #40Composite materials

2Stress or pressure

If the slat unit is made more flexible to reduce bending stress, then stress distribution is improved, but penetration capability deteriorates

Engineering Contradiction:
Improvebending stress distributionVSAvoidpenetration capability
Core Design Contradiction:
Stress or pressureVSStrength

Solution Approach 1:

The slat unit is divided into distinct components (metal sub-slats, composite base layer, protective cover) that can independently perform their functions - the segmented structure allows flexibility in the base layer while maintaining rigid piercing elements for penetration

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If the slat armor is designed with fixed rigid structure, then manufacturing simplicity is improved, but adaptability to varying threats deteriorates

Engineering Contradiction:
Improvestructural simplicityVSAvoidadaptability to ballistic threats
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The design allows adjustment of parameters such as slat spacing, sub-slat configuration, and material properties to adapt to different threat levels while maintaining a relatively simple base structure that is easy to manufacture

Inventive Principle:
Principle #35Parameter changes

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 hybrid slat armor effectively neutralizes RPGs by penetrating the warhead's envelope and distributing impact forces, maintaining structural integrity and adaptability to varying ballistic threats, while ensuring personnel safety and ease of handling.

Implementation Method 1

the piercing elements are configured for penetrating an envelope of a threat upon impact of the latter on the hybrid slat armor

Methodology Applied
Scientific EffectImpact force: Impact Force

Implementation Method 2

allowing the slat units to bend perpendicular to the impact direction

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Data Source

PatentEP2792992B1Hybrid slat armor
Publication Date: 2017.09.20 PLASAN SASA LTD
  • EP2792992B1 patent drawingFigure 1
  • EP2792992B1 patent drawingFigure 2A
  • EP2792992B1 patent drawingFigure 2B

AI summary

A hybrid slat armor (1) configured for protecting a body against a threat (10) having an anticipated impact direction. The hybrid slat armor (1) comprises a plurality of slat units (20), each extending along a first longitudinal direction, the units (20) being spaced apart along a second direction perpendicular to the first direction. Each slat unit (20) has a strike end configured for facing the anticipated impact direction, a rear end opposite the strike end, a top set of piercing elements (80) and a bottom set of piercing elements (80). The piercing elements (80) of each set are successively arranged along the longitudinal direction of the slat unit (20) at the strike end thereof and are spaced apart in the longitudinal direction; The piercing elements (80) of the top set are spaced from the piercing elements (80) of the bottom set in the second longitudinal direction to a distance which is considerably smaller than that between adjacent slat units (20).