Building Panel With Segmented Sections For Isotropic Strength

Solution Overview

Problem

Existing fiberboards exhibit low isotropy in mechanical strength, leading to uneven load-bearing capacity and flexural strength across different orientations, requiring thicker panels for sufficient strength, which is economically and structurally inefficient.

Innovation Solution

A building panel composed of two sections, where one section is thinner than the other, both with fibers oriented predominantly in the same direction, and joined transversely to enhance isotropy in load-bearing capacity and flexural strength, achieving uniform mechanical properties across directions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If panels are made thicker to ensure sufficient load bearing capacity, then mechanical strength is improved, but weight and manufacturing cost increase

Engineering Contradiction:

Improveload bearing capacityVSAvoidpanel weight

Core Design Contradiction:

StrengthVSWeight of moving object

Solution Approach 1:

The panel is divided into multiple sections (first section and second section) with different thicknesses. The first section has a first thickness and the second section has a second thickness, where the ratio of first thickness to second thickness is within a specific range (0.2-0.8). This segmentation allows the panel to achieve sufficient mechanical strength while reducing overall weight compared to a uniformly thick panel.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different sections of the panel are given different thicknesses based on local strength requirements. The first section may be positioned in a region requiring higher strength while the second section is in a region where slightly lower strength is acceptable, optimizing the weight-strength ratio for each local area.

Inventive Principle:

Principle #3Local quality

2Strength

If panels are made thicker to ensure sufficient load bearing capacity, then mechanical strength is improved, but manufacturing cost increases

Engineering Contradiction:

Improveload bearing capacityVSAvoidmanufacturing cost

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The panel is divided into multiple sections (first section and second section) with different thicknesses. The first section has a first thickness and the second section has a second thickness, where the ratio of first thickness to second thickness is within a specific range (0.2-0.8). This segmentation allows the panel to achieve sufficient mechanical strength while reducing overall weight compared to a uniformly thick panel.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The thickness parameter is varied across different sections of the panel. By controlling the ratio of first thickness to second thickness within the range of 0.2-0.8, the panel achieves optimal mechanical strength with reduced material consumption, thereby lowering manufacturing costs while maintaining structural integrity.

Inventive Principle:

Principle #35Parameter changes

3Ease of manufacture

If fibers are oriented predominantly in the same direction, then manufacturing process is simplified, but mechanical strength becomes anisotropic

Engineering Contradiction:

Improvefiber orientation controlVSAvoidmechanical strength isotropy

Core Design Contradiction:

Ease of manufactureVSStrength

Solution Approach 1:

The panel is divided into multiple sections (first section and second section) with different thicknesses. The first section has a first thickness and the second section has a second thickness, where the ratio of first thickness to second thickness is within a specific range (0.2-0.8). This segmentation allows the panel to achieve sufficient mechanical strength while reducing overall weight compared to a uniformly thick panel.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The panel employs asymmetric thickness distribution between the first and second sections. By setting the ratio of first thickness to second thickness within the range of 0.2-0.8, the panel creates an asymmetric structure that compensates for fiber orientation anisotropy, achieving more uniform mechanical strength properties in different directions.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS12044008B2Building panel with sections

Publication Date: 2024.07.23 KNAUF GIPS KG

AI summary

A building panel with a high degree of isotropy with regard to the load bearing capacity and flexural strength. The building panel includes a first section and a second section, each section including at least one layer, each of the at least one layer having fibers, whereby the fibers are distributed substantially homogeneously throughout each layer, substantially parallel to the main surfaces of the panel and oriented predominantly in the same direction and the sections are firmly joined in transverse direction, and the first section is thinner than the second section.