Torsional properties of staple fibre plied yarns

Phillips, D. G. and Tran, Canh-Dung and Fraser, W. B. and van der Heijden, G. H. M. (2010) Torsional properties of staple fibre plied yarns. Journal of the Textile Institute, 101 (7). pp. 595-612. ISSN 0040-5000

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Abstract

A mathematical analysis of the mechanical governing equations applying to the torsional behaviour of multi-ply yarns under tension has been carried out. This analysis clearly shows that there are two components, a geometric component that determines the slope or gradient of the torque due to tension and a component that determines the yarn torque at zero applied tension (intrinsic torque) that depends on the fibre number, fibre moduli and diameter as well as the strand structural geometry. The effect of the ratio of the ply twist to the spinning twist on the two components of yarn torque has been numerically analysed for two-, three- and four-ply yarns prepared from singles 31 yarns spun with different spinning twists and for two different fibre diameters. Other comparisons are made for two-ply yarns prepared from 40 and 80 tex singles yarn. The model allows the effects of the various yarn and fibre parameters to be assessed and compared with experimental data. Experimental torque data for a range of two-ply yarns plied at different percentages of the singles spinning twist and also with different yarn histories and test environments are consistent with the trends identified by the model.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Accepted Version deposited in accordance with the copyright policy of the publisher.
Depositing User: Dr Canh-Dung Tran
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 23 Mar 2011 04:47
Last Modified: 10 Jul 2014 05:05
Uncontrolled Keywords: torque; tension; governing equations; torsion; bending; multi-ply yarn; zero torque condition; fibre diameter; yarn count; yarn history; experimental data; ply twist
Fields of Research (FOR2008): 09 Engineering > 0910 Manufacturing Engineering > 091012 Textile Technology
01 Mathematical Sciences > 0102 Applied Mathematics > 010207 Theoretical and Applied Mechanics
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective (SEO2008): B Economic Development > 86 Manufacturing > 8604 Leather Products, Fibre Processing and Textiles > 860406 Synthetic Fibres, Yarns and Fabrics
Identification Number or DOI: doi: 10.1080/00405000802632886
URI: http://eprints.usq.edu.au/id/eprint/18299

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