A new estimate of the yarn-on-yarn friction coefficient
File(s)
Author(s)
Hobbs, RE
Ridge, Isabel
Type
Journal Article
Abstract
The value of the yarn-on-yarn friction coefficient is an important parameter in analyses of the behaviour of fibre ropes and textiles. The standard method for calculating this friction coefficient for rope yarns relies on an analysis of the measured forces in a simple plait as a yarn is pulled over itself through the plait. Unfortunately, this analysis includes some ambiguities that have made their way into an ASTM standard and some worrying approximations. These issues are addressed here and then an improved analysis developed. Sample calculations indicate that differences of up to 40% in the calculated friction coefficient can be expected, with significant effects on any subsequent rope analysis.
Date Issued
2018-05-01
Date Acceptance
2018-01-30
Citation
Journal of Strain Analysis for Engineering Design, 2018, 53, pp.191-196
ISSN
0309-3247
Publisher
SAGE Publications
Start Page
191
End Page
196
Journal / Book Title
Journal of Strain Analysis for Engineering Design
Volume
53
Copyright Statement
© IMechE 2018. The final, definitive version of this paper has been published inJournal of Strain Analysis for Engineering Design by Sage Publications Ltd. All rights reserved. It is available at: http://journals.sagepub.com/doi/10.1177/0309324718760883
Subjects
Science & Technology
Technology
Engineering, Mechanical
Mechanics
Materials Science, Characterization & Testing
Engineering
Materials Science
Yarn friction coefficient
rope
calculation model
0913 Mechanical Engineering
Mechanical Engineering & Transports
Publication Status
Published
Date Publish Online
2018-03-04