Honeycomb decoupling sheet
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Solution Overview
Problem
Existing honeycomb decoupling sheets fail to effectively manage movement differentials between facing materials and substrates due to differing expansion coefficients and humidity stresses, while also compromising ventilation and not adequately addressing shear stresses from twisting motions.
Innovation Solution
A honeycomb decoupling sheet with a tessellated design featuring a matrix of regular hexagonal units, including primary and secondary prominences and concavities, which creates a balanced ventilation system and homogeneous load distribution, while also optimizing adhesive filler usage and enhancing acoustic insulation and tensile stress resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If ventilation channels are created to allow continuous air circulation under the sheet, then ventilation is improved, but the processing of the sheet becomes complicated
Solution Approach 1:
The sheet is divided into modular hexagonal units, each containing integrated ventilation channels. This segmentation allows the ventilation function to be built into the basic structural unit, avoiding the need for complex post-processing while maintaining continuous air circulation across the entire sheet.
Solution Approach 2:
The ventilation channels are merged with the structural reliefs and concavities of the honeycomb pattern. The channels are formed by the same molding process that creates the structural elements, combining ventilation functionality with structural support without adding separate processing steps.
2Object-affected harmful factors
If slots are made to connect layers for ventilation, then air circulation is improved, but the structural integrity and load distribution are compromised
Solution Approach 1:
The sheet design incorporates local variations in thickness and density through the hexagonal relief pattern. Areas with reliefs provide structural reinforcement while adjacent concavity regions allow for ventilation channels, creating local quality differences that simultaneously satisfy both structural integrity and ventilation requirements.
3Ease of manufacture
If the honeycomb sheet uses a simple flat design, then manufacturing is easier, but it cannot effectively absorb movement differentials and shear stresses
Solution Approach 1:
The honeycomb pattern incorporates curved surfaces and rounded transitions between reliefs and concavities. These curved geometries allow the sheet to flex and deform more effectively under shear stresses and twisting motions, improving stress distribution while still being manufacturable using standard molding techniques.
Solution Approach 2:
The sheet combines multiple material properties within a single molded structure, integrating rigid hexagonal reliefs for structural support with more flexible concavity regions for stress absorption. This composite-like structure within a monolithic piece provides enhanced stress resistance while maintaining manufacturing simplicity.
Data Source
AI summary
Honeycomb decoupling sheet, comprising a plurality of reliefs and concavities that form upper and lower planes, and comprises a tessellated shape with a repeating hexagonal geometric unit, comprising a first central prominence, which configures a first air chamber; a first concavity around the previous one; six second prominences corresponding to a third of the first prominence and located at the vertices of the unit and, a third of first concavity around each second prominence, and; six equidistant second concavities, with radial distribution with respect to the center of the unit, which determine a circular matrix between the first concavity and the thirds of first concavity, where the plurality of reliefs configures a lattice between the first and second concavities that forms a second continuous air chamber incommunicable with each first chamber, where the first and second concavities are incommunicable with each other.