Folded FRP Panel Consolidation for Structural Integrity
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Solution Overview
Problem
Conventional folded edge panels lack stiffness and strength due to flexible foam substrates and have complex welding processes, limiting their structural integrity and usability.
Innovation Solution
The method involves forming a multi-layer panel with a fiber-reinforced polymer (FRP) substrate and a polymer matrix, folding it to create opposed plies, and consolidating it with an outer layer and optional fiber or fibrous material substrates to enhance structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If foam substrates are used for folded edge panels, then flexibility is achieved, but stiffness and strength are insufficient
Solution Approach 1:
The patent uses fiber-reinforced polymer (FRP) composite materials to create a substrate that combines the flexibility needed for folding with the stiffness and strength required for structural integrity. The FRP substrate incorporates fibers (such as glass, carbon, or organic fibers) within a polymer matrix, creating a composite structure that simultaneously provides both flexibility and mechanical strength, resolving the contradiction between these two properties.
2Ease of operation
If foam substrates are used for folded panels, then the panel can be folded, but the welding process becomes complicated
Solution Approach 1:
The patent changes the material parameters from foam to FRP composite, which fundamentally alters the joining characteristics. FRP substrates can be joined using conventional methods such as adhesives, mechanical fasteners, or thermal processes that are simpler and more reliable than the multi-step heating and bonding required for foam materials. This parameter change simplifies the welding/joining process while maintaining foldability.
3Ease of manufacture
If foam substrates are used, then the panel can be manufactured, but structural integrity is limited
Solution Approach 1:
The FRP composite substrate provides superior structural integrity compared to foam materials while remaining manufacturable. The fiber reinforcement within the polymer matrix creates a mechanically robust structure that can withstand higher loads and stresses, improving reliability. The manufacturing process involves standard composite fabrication techniques that are well-established in industry, maintaining ease of manufacture.
4Adaptability or versatility
If conventional folded panels are used, then partitioning is possible, but the panels lack sufficient strength for structural applications
Solution Approach 1:
The FRP composite material enables the panels to serve dual purposes: maintaining their partitioning function while providing sufficient structural strength for load-bearing applications. The high strength-to-weight ratio of FRP composites allows the panels to be used in structural contexts such as aircraft interiors, automotive partitions, and architectural applications where both partitioning and structural strength are required.
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
The solution results in a stiffer and stronger folded panel with improved structural aspects, simplifying the fabrication process and expanding the panel's applications.
Implementation Method 1
simultaneously consolidating the combination of the folded FRP substrate and the at least one fiber or fibrous substrate inserted therein to form a folded, consolidated panel
Data Source
AI summary
A folded panel includes a fiber-reinforced polymer (FRP) substrate with an outer layer secured to and at least partially covering one major surface thereof and a polymer matrix covering an opposite major surface thereof. In one embodiment, the FRP substrate is folded about a fold line to create opposed plies on either side of the fold line with the polymer matrix of one of the opposed plies contacting the polymer matrix of the other of the opposed plies and with the outer layer forming a folded edge at the fold line that is continuous with the outer layer covering the opposed plies, and the folded FRP substrate is then consolidated with the polymer matrix at a consolidation temperature that is between an activation temperature of the polymer matrix and a melting temperature of the outer layer.