Compartmentalized Transparent Armor Glazing for Hard-Core Projectiles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional armored glass windows are unable to meet the growing requirements for lightweight, thinner sheets that provide effective protection against projectiles with cemented carbide cores, such as tungsten carbide, while maintaining security and weathering resistance.
Innovation Solution
A transparent laminated sheet with a compartmentalized construction comprising two blocks separated by a gas-filled compartment, where the first block consists of glass and/or plastic layers and the second block includes a laminate of transparent ceramic layers, with at least one layer of transparent ceramic in contact with the gas-filled compartment, optimizing the distribution of ceramic material for enhanced protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional armored glass windows use thick transparent ceramic facing layers (12-14 mm) to protect against cemented carbide cores, then protection effectiveness is improved, but weight increases significantly
Solution Approach 1:
The patent divides the protective structure into two separate blocks (first block with glass/plastic layers, second block with transparent ceramic layers) separated by a gas-filled compartment. This segmentation allows the transparent ceramic to be positioned optimally within the second block rather than requiring a thick continuous facing layer, reducing overall weight while maintaining protection effectiveness against cemented carbide cores.
Solution Approach 2:
The patent embeds the transparent ceramic layers within the second block of the laminated structure, nesting them between other transparent layers (glass and/or plastic). This nested arrangement allows the ceramic to provide its protective function against hard cores while being integrated into a multi-layer construction that reduces the need for excessive ceramic thickness, thereby reducing weight.
2Weight of stationary object
If transparent ceramic layers are made thinner to reduce weight, then weight is reduced, but protection against cemented carbide cores deteriorates
Solution Approach 1:
The gas-filled compartment acts as an intermediary element between the first block (glass/plastic layers) and the second block (transparent ceramic layers). This intermediary structure allows the transparent ceramic layers to be positioned at an optimal distance from the projectile impact point, enhancing their effectiveness against cemented carbide cores while allowing thinner ceramic thickness compared to traditional single-block designs.
Solution Approach 2:
The patent transitions from a traditional single-block thick-ceramic design to a compartmentalized two-block structure with gas-filled separation. This dimensional reorganization of the protective system allows the transparent ceramic to be distributed more efficiently in space, achieving protection effectiveness with reduced ceramic thickness and overall weight.
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 configuration achieves effective protection against projectiles with cemented carbide cores by fragmenting the projectile core and reducing penetration capacity, allowing for a weight reduction of up to 30% compared to traditional laminated sheets with a facing layer of transparent ceramic, while maintaining environmental resistance and thermal insulation.
Implementation Method 1
When a steel projectile strikes a ceramic at high velocity, the projectile is greatly deformed and loses a large fraction of its mass through erosion on interaction with the ceramic
Implementation Method 2
the projectile is greatly deformed and loses a large fraction of its mass through erosion on interaction with the ceramic
Implementation Method 3
maintaining environmental resistance and thermal insulation
Data Source
AI summary
The present invention relates to transparent laminated panes for security applications, which comprise a laminate made up of transparent layers of a compartmentalized construction, with two blocks separated from one another by a gas-filled intermediate space, wherein the layer of the second block, which is in contact with the gas-filled intermediate space, comprises transparent ceramic, and relates to the use thereof for security and/or protection applications for panes or windows in civilian and military areas.