Ballistic Armor Nonorthogonal Stitching Weight Reduction

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Solution Overview

Problem

Current vehicular armors are either too heavy, offer low ballistic protection, or are expensive, limiting their widespread use due to mobility and budgetary constraints.

Innovation Solution

A lightweight ballistic resistant armor is created by combining non-woven and woven material layers with specific stitching patterns, such as overlapping circles or discontinuous triangles, to provide high ballistic protection while reducing weight and cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional heavy armors are used to provide high ballistic protection, then ballistic resistance is improved, but vehicle mobility deteriorates and fuel consumption increases

Engineering Contradiction:
Improveballistic resistanceVSAvoidarmor weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The patent applies composite materials by combining multiple layers of ballistic resistant materials (woven and non-woven fabrics) with different properties. Each layer serves a specific function in stopping projectiles, and the combination achieves high ballistic protection without requiring excessive weight from single-material solutions.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The armor is segmented into multiple discrete layers (woven layers, non-woven layers) that are stitched together. This segmentation allows each layer to be optimized for specific protective functions while distributing the weight burden across the entire structure rather than concentrating it in single heavy components.

Inventive Principle:
Principle #1Segmentation

2Strength

If traditional armors are used to ensure high ballistic protection, then protection rating is improved, but cost increases

Engineering Contradiction:
Improveballistic protection ratingVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The armor construction is divided into multiple layers that can be manufactured separately and then assembled through stitching. This segmentation enables modular production, quality control at each layer level, and efficient assembly processes, reducing overall manufacturing complexity and cost while maintaining high protection ratings.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

By using composite material structures with woven and non-woven layers, the patent achieves high ballistic protection through material synergies rather than relying on expensive single-material solutions. The combination of materials provides cost-effective protection by leveraging the strengths of each material type.

Inventive Principle:
Principle #40Composite materials

3Strength

If heavy armors are deployed to provide significant ballistic protection, then protection level is improved, but vehicle mobility and operational range deteriorate

Engineering Contradiction:
Improveballistic protection levelVSAvoidvehicle mobility
Core Design Contradiction:
StrengthVSSpeed

Solution Approach 1:

The composite material structure provides high ballistic protection with reduced weight compared to traditional homogeneous armors. This weight reduction directly improves vehicle mobility and operational range while maintaining the required protection level against ballistic threats.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The segmented multi-layer structure distributes protective functions across multiple thin layers rather than requiring a single thick heavy layer. This approach achieves equivalent protection with lower overall weight, preserving vehicle speed and mobility characteristics.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9387644B1Ballistic resistant material with nonorthogonal stitching
Publication Date: 2016.07.12 BLACKTOOTH AEROSPACE LLC
  • US9387644B1 patent drawing
  • US9387644B1 patent drawing
  • US9387644B1 patent drawing

AI summary

The present invention provides ballistic resistant armor including a first ballistic resistant layer including non-woven material, a second ballistic resistant layer comprising woven material, the first ballistic resistant layer coupled to the second ballistic resistant layer by stitches, and methods of making the same.