Hook and Loop Fastening Virtual Modeling via FEA
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Solution Overview
Problem
It is challenging to predict which hook and loop fastening materials can form a reliable fastening system, as the design of male and female fastening elements significantly affects their engagement, and existing methods lack efficiency in evaluating and modifying these materials before real-world testing.
Innovation Solution
The use of computer-based models simulated using Finite Element Analysis (FEA) software to represent and interactively engage male and female fastening materials, allowing for the prediction of their physical behavior and performance under various conditions, such as engagement, peeling, and shearing, thereby evaluating and modifying fastening systems before real-world application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If computer-based FEA models are used to simulate fastening materials, then prediction accuracy and reliability of fastening system performance is improved, but device complexity and computational resources required increase
Solution Approach 1:
The patent creates simplified computer-based models that replicate the essential mechanical behavior of male and female fastening materials. These virtual copies allow prediction of engagement, peeling, and shearing performance without requiring complex physical testing setups, thus improving prediction accuracy while managing modeling complexity through abstraction.
Solution Approach 2:
The patent replaces physical mechanical testing of fastening materials with computer-based Finite Element Analysis simulations. This substitution eliminates the need for repeated physical prototypes and testing apparatus, improving reliability of performance predictions while reducing the complexity associated with physical test methodologies.
2Measurement precision
If physical testing of fastening materials is performed, then accurate performance data is obtained, but time consumption and development cost increase
Solution Approach 1:
The patent performs virtual testing through FEA simulations before committing to physical manufacturing and testing. This preliminary action allows evaluation of multiple fastening material configurations in silico, identifying promising candidates that can then be tested physically with higher confidence, thereby reducing overall development time while maintaining measurement precision for critical performance metrics.
Solution Approach 2:
The patent uses virtual replicas of fastening materials in computer simulations to obtain performance data without consuming physical materials or requiring extensive testing time. These digital copies can be tested repeatedly under various conditions instantaneously, providing accurate performance predictions while eliminating the time loss associated with physical prototyping and testing iterations.
3Reliability
If fastening materials are optimized through iteration, then engagement reliability is improved, but number of prototypes and testing cycles increase
Solution Approach 1:
The patent replaces iterative physical prototyping and testing with computer-based FEA simulations. This allows rapid optimization of fastening material designs by adjusting parameters in the virtual models and immediately observing performance outcomes, thereby improving engagement reliability through systematic optimization while dramatically increasing development efficiency by eliminating repeated physical manufacturing and testing cycles.
Solution Approach 2:
The patent optimizes fastening material performance by systematically varying parameters in the FEA models, such as hook geometry, loop density, material properties, and engagement forces. This parameter-driven approach allows efficient exploration of design space to identify optimal configurations for engagement reliability without requiring proportional increases in physical prototypes or testing cycles, thus improving productivity.
Data Source
AI summary
Methods of modeling hook and loop fastening systems are disclosed.