Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s Ratio
Smart auxetic structures are gaining attention in various areas such as architecture, clothing (sports and protective), civil, and medical applications owing to their negative Poisson’s ratio. Compared to ordinary structures, these structures have better properties (shear resistance, formability, en...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/1896634 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849764836089528320 |
|---|---|
| author | Muhammad Sohaib Anas Habib Awais Syed Talha Ali Hamdani Khubab Shaker Zeeshan Azam Yasir Nawab |
| author_facet | Muhammad Sohaib Anas Habib Awais Syed Talha Ali Hamdani Khubab Shaker Zeeshan Azam Yasir Nawab |
| author_sort | Muhammad Sohaib Anas |
| collection | DOAJ |
| description | Smart auxetic structures are gaining attention in various areas such as architecture, clothing (sports and protective), civil, and medical applications owing to their negative Poisson’s ratio. Compared to ordinary structures, these structures have better properties (shear resistance, formability, energy absorbance, and robust fracture strength). Auxetic structures show the exceptional property of becoming wider in one direction when stretched from another direction. In this research, three different auxetic weft-knitted structures were fabricated using nylon, polyester, acrylic, and cotton yarns on a Shima Seiki flat-knitting machine. The physical properties, negative Poisson’s ratio, and thermo-physiological comfort properties of these fabrics were checked. Negative Poisson’s ratio strain curves of the developed fabrics were plotted; all fabrics, except for nylon, show the negative Poisson’s ratio (NPR). The NPR decreases with increased strain in the longitudinal direction, and polyester exhibits a maximum value of NPR −0.4 in line structure at 30 mm extension. Results also revealed that structures made with nylon and polyester yarns exhibit a better value of air permeability than acrylic and cotton, while acrylic provides the best thermal resistance values than other materials in line structure and polyester yarn shows better overall moisture management capacity (OMMC) performance in zigzag structures. |
| format | Article |
| id | doaj-art-bd269f8288394ef09443c5d28f768bbb |
| institution | DOAJ |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-bd269f8288394ef09443c5d28f768bbb2025-08-20T03:05:02ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/1896634Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s RatioMuhammad Sohaib Anas0Habib Awais1Syed Talha Ali Hamdani2Khubab Shaker3Zeeshan Azam4Yasir Nawab5School of Engineering & TechnologySchool of Engineering & TechnologySchool of Engineering & TechnologySchool of Engineering & TechnologySchool of Engineering & TechnologySchool of Engineering & TechnologySmart auxetic structures are gaining attention in various areas such as architecture, clothing (sports and protective), civil, and medical applications owing to their negative Poisson’s ratio. Compared to ordinary structures, these structures have better properties (shear resistance, formability, energy absorbance, and robust fracture strength). Auxetic structures show the exceptional property of becoming wider in one direction when stretched from another direction. In this research, three different auxetic weft-knitted structures were fabricated using nylon, polyester, acrylic, and cotton yarns on a Shima Seiki flat-knitting machine. The physical properties, negative Poisson’s ratio, and thermo-physiological comfort properties of these fabrics were checked. Negative Poisson’s ratio strain curves of the developed fabrics were plotted; all fabrics, except for nylon, show the negative Poisson’s ratio (NPR). The NPR decreases with increased strain in the longitudinal direction, and polyester exhibits a maximum value of NPR −0.4 in line structure at 30 mm extension. Results also revealed that structures made with nylon and polyester yarns exhibit a better value of air permeability than acrylic and cotton, while acrylic provides the best thermal resistance values than other materials in line structure and polyester yarn shows better overall moisture management capacity (OMMC) performance in zigzag structures.http://dx.doi.org/10.1155/2022/1896634 |
| spellingShingle | Muhammad Sohaib Anas Habib Awais Syed Talha Ali Hamdani Khubab Shaker Zeeshan Azam Yasir Nawab Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s Ratio Advances in Materials Science and Engineering |
| title | Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s Ratio |
| title_full | Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s Ratio |
| title_fullStr | Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s Ratio |
| title_full_unstemmed | Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s Ratio |
| title_short | Investigating the Thermo-Physiological Comfort Properties of Weft-Knitted Smart Structures Having a Negative Poisson’s Ratio |
| title_sort | investigating the thermo physiological comfort properties of weft knitted smart structures having a negative poisson s ratio |
| url | http://dx.doi.org/10.1155/2022/1896634 |
| work_keys_str_mv | AT muhammadsohaibanas investigatingthethermophysiologicalcomfortpropertiesofweftknittedsmartstructureshavinganegativepoissonsratio AT habibawais investigatingthethermophysiologicalcomfortpropertiesofweftknittedsmartstructureshavinganegativepoissonsratio AT syedtalhaalihamdani investigatingthethermophysiologicalcomfortpropertiesofweftknittedsmartstructureshavinganegativepoissonsratio AT khubabshaker investigatingthethermophysiologicalcomfortpropertiesofweftknittedsmartstructureshavinganegativepoissonsratio AT zeeshanazam investigatingthethermophysiologicalcomfortpropertiesofweftknittedsmartstructureshavinganegativepoissonsratio AT yasirnawab investigatingthethermophysiologicalcomfortpropertiesofweftknittedsmartstructureshavinganegativepoissonsratio |