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Controlled and scalable torsional actuation of twisted nylon 6 fiber

Journal Article


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Abstract


  • Large-scale torsional actuation occurs in twisted fibers and yarns as a result of volume change induced electrochemically, thermally, photonically, and other means. A quantitative relationship between torsional actuation (stroke and torque) and volume change is here introduced. The analysis is based on experimental investigation of the effects of fiber diameter and inserted twist on the torsional stroke and torque measured when heating and cooling nylon 6 fibers over the temperature range of 26-62 °C. The results show that the torsional stroke depends only on the amount of twist inserted into the fiber and is independent of fiber diameter. The torque generated is larger in fibers with more inserted twist and with larger diameters. These results are successfully modeled using a single-helix approximation of the twisted fiber structure.

Publication Date


  • 2016

Citation


  • Aziz, S., Naficy, S., Foroughi, J., Brown, H. R. & Spinks, G. M. (2016). Controlled and scalable torsional actuation of twisted nylon 6 fiber. Journal of Polymer Science Part B: Polymer Physics, 54 (13), 1278-1286.

Scopus Eid


  • 2-s2.0-84977913810

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6905&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5876

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 1278

End Page


  • 1286

Volume


  • 54

Issue


  • 13

Abstract


  • Large-scale torsional actuation occurs in twisted fibers and yarns as a result of volume change induced electrochemically, thermally, photonically, and other means. A quantitative relationship between torsional actuation (stroke and torque) and volume change is here introduced. The analysis is based on experimental investigation of the effects of fiber diameter and inserted twist on the torsional stroke and torque measured when heating and cooling nylon 6 fibers over the temperature range of 26-62 °C. The results show that the torsional stroke depends only on the amount of twist inserted into the fiber and is independent of fiber diameter. The torque generated is larger in fibers with more inserted twist and with larger diameters. These results are successfully modeled using a single-helix approximation of the twisted fiber structure.

Publication Date


  • 2016

Citation


  • Aziz, S., Naficy, S., Foroughi, J., Brown, H. R. & Spinks, G. M. (2016). Controlled and scalable torsional actuation of twisted nylon 6 fiber. Journal of Polymer Science Part B: Polymer Physics, 54 (13), 1278-1286.

Scopus Eid


  • 2-s2.0-84977913810

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6905&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5876

Has Global Citation Frequency


Number Of Pages


  • 8

Start Page


  • 1278

End Page


  • 1286

Volume


  • 54

Issue


  • 13