Spike resistant package and article
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Solution Overview
Problem
Existing spike-resistant materials and packages face challenges in effectively dissipating energy from spike threats due to restricted movement of spike-resistant textile layers within a pouch, which reduces their ability to interact fully with the spike.
Innovation Solution
A spike-resistant package design that includes a pouch with a first grouping of spike-resistant textile layers and a slip layer. The slip layer, with a woven or knit fabric and a pile portion, is positioned between the spike-resistant textile layers and the inner surface of the pouch, allowing for reduced interaction between the textile layers and the pouch, thereby enhancing their ability to dissipate energy from spike threats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If spike-resistant textile layers are enclosed within a pouch, then the package structure is contained and organized, but the textile layers' movement is restricted reducing their ability to dissipate energy
Solution Approach 1:
A slip layer is introduced as an intermediary component between the spike-resistant textile layers and the pouch. This slip layer has a low coefficient of friction that allows the textile layers to move freely relative to the pouch while maintaining containment. The slip layer mediates between the conflicting requirements of structural containment and energy dissipation through movement.
2Device complexity
If the pouch inner surface directly contacts the spike-resistant textile layers, then the structure is simple, but the textile layers cannot move freely to interact with spike threats
Solution Approach 1:
The slip layer serves as a mediator between the pouch inner surface and the spike-resistant textile layers. It provides a low-friction interface that enables free movement of the textile layers when subjected to spike threats, thereby maintaining reliability without significantly increasing structural complexity.
3Strength
If multiple spike-resistant textile layers are stacked, then protection level increases, but the layers become more restricted in movement
Solution Approach 1:
The slip layer is positioned between the stacked spike-resistant textile layers and the pouch, providing a low-friction interface that allows multiple layers to move independently relative to each other and the pouch. This maintains ease of operation (layer movement) while preserving the increased protection level provided by multiple layers.
Data Source
AI summary
A spike resistant package containing a pouch, a first grouping of spike resistant textile layers, and a slip layer. The first grouping of spike resistant textile layers contains a plurality of spike resistant textile layers, where each spike resistant textile layer contains a plurality of interwoven yarns or fibers having a tenacity of about 14 or more grams per denier. The slip layer is a woven or knit fabric containing a main portion and a first pile portion on the upper surface of the main portion. The slip layer contains a plurality of yarns knitted or woven together and a plurality of holes between the yarns. The holes of the slip layer have an average max hole size of less than about 2 mm. The yarns and fibers in the pile portion are in loops or strands extending outward from the main portion of the slip layer.