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Journals / Tekstil ve Konfeksiyon / 2021 / Cilt: 31 - Sayı: 3

Comparison of Poisson’s Ratio Measurement Methods: The Extensometer and the Universal Tensile Testing Devices

Mehmet TİRİTOĞLU
Serkan TEZEL
Yasemin KAVUŞTURAN
Pages
203–213
Publication Date
2021-09-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

While the PR of foldable fabrics cannot be measured with the UTT device because of the fabrics' folding on themselves, it has been observed that it can be easily measured with the extensometer device thanks to the horizontal axis principle.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Auxetic materials with a negative Poison’s ratio (PR) have the potential to meet the demand for different materials, especially technical textiles.
📊
Key Findings & Data:This study aims to investigate the PR of knitted fabrics with UTT and extensometer devices comparatively by using the same measurement parameters according to ASTM E132.
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Conclusion & Impact:While the PR of foldable fabrics cannot be measured with the UTT device because of the fabrics' folding on themselves, it has been observed that it can be easily measured with the extensometer device thanks to the horizontal axis principle.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Poisson's ratio · auxetic · knitted auxetic fabric

Abstract

Auxetic materials with a negative Poison’s ratio (PR) have the potential to meet the demand for different materials, especially technical textiles. In the literature, Universal Tensile Test (UTT) devices and various experimental setups developed by researchers have been used in PR measurements. This study aims to investigate the PR of knitted fabrics with UTT and extensometer devices comparatively by using the same measurement parameters according to ASTM E132. Knitted fabrics with zigzag and foldable patterns were produced in the study because of their auxetic behaviour. It has been determined that the extensometer device can be used as an alternative to the UTT device for PR measurements. While the PR of foldable fabrics cannot be measured with the UTT device because of the fabrics' folding on themselves, it has been observed that it can be easily measured with the extensometer device thanks to the horizontal axis principle.

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Cite This Article

TİRİTOĞLU, M., TEZEL, S., KAVUŞTURAN, Y. (2021). Comparison of Poisson’s Ratio Measurement Methods: The Extensometer and the Universal Tensile Testing Devices. Tekstil ve Konfeksiyon, Cilt: 31 - Sayı: 3, 203–213. https://ajindex.com/articles/379967

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