Expandable Adhesive Structural Reinforcement for Vehicle Buckling

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Solution Overview

Problem

Existing structural reinforcements in vehicles are inadequate in preventing buckling, particularly in areas where typical reinforcing structures fail to manage loads effectively, leading to deformation and cracking.

Innovation Solution

A structural reinforcement comprising a rigid polymeric structure with expandable adhesive material applied to specific surfaces, featuring rib structures and wells designed to minimize buckling and cracking, where the expandable adhesive material expands upon exposure to high temperatures, providing enhanced load management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If typical reinforcing structures are used, then the structure is simple and easy to manufacture, but the structure is unable to prevent buckling and deformation under load

Engineering Contradiction:
Improveload management capabilityVSAvoidstructural complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The reinforcement structure is divided into multiple sections with varying shapes and forms, including central and side portions with different geometries. This segmentation allows each section to be optimized for specific load conditions while maintaining overall structural integrity and preventing buckling.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different sections of the reinforcement structure have different shapes, sizes, and structural characteristics. The central portion and side portions are designed with specific geometries tailored to the local stress conditions, providing enhanced load management where needed without unnecessary complexity elsewhere.

Inventive Principle:
Principle #3Local quality

2Reliability

If expandable adhesive material is added to the reinforcement structure, then the load distribution and structural integrity are improved, but the manufacturing process and device complexity increase

Engineering Contradiction:
Improvestructural integrityVSAvoidmanufacturing process
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The expandable adhesive material is integrated directly onto the reinforcement structure surfaces, combining the structural component and the bonding agent into a single assembly. This merging eliminates separate manufacturing steps for applying adhesive and ensures proper positioning and distribution.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The expandable adhesive material is pre-applied to the reinforcement structure before installation. This preliminary action ensures that the adhesive is in position and ready to expand and bond when activated, simplifying the overall installation process while maintaining high structural integrity.

Inventive Principle:
Principle #10Preliminary action

3Strength

If rib structures are added to the reinforcement surfaces, then the resistance to buckling and deformation is enhanced, but the manufacturing complexity increases

Engineering Contradiction:
Improveresistance to bucklingVSAvoidsurface structure complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

Rib structures are added to the surfaces of the reinforcement, creating curved and contoured geometries that inherently resist buckling and deformation. These curved surfaces distribute stresses more effectively than flat surfaces, enhancing structural strength without requiring excessive material.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 effectively reduces the likelihood of buckling and cracking by distributing loads more efficiently across the reinforcement structure, enhancing its structural integrity in critical vehicle areas.

Implementation Method 1

the expandable adhesive material expands upon exposure to high temperatures

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Data Source

PatentEP3568336B1Reinforcing devices
Publication Date: 2021.08.11 ZEPHYROS INC
  • EP3568336B1 patent drawingFigure 1
  • EP3568336B1 patent drawingFigure 2
  • EP3568336B1 patent drawingFigure 3~4

AI summary

A structural reinforcement comprising a rigid polymeric structure (12) including a central portion (20) and two side portions (22,24) adjacent the central portion, each of the central portion and side portions including a top surface and bottom surface and an expandable adhesive material (14) located onto at least one surface of each of the central portions and two side portions, wherein the expandable adhesive material is located along the bottom surface of the central portion and the top surface of each of the side portions.