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Estimation of the Longitudinal Elasticity Modulus of Braided Synthetic Fiber Rope Utilizing Classical Laminate Theory with the Unit N/tex

Authors :
Vannei Sry
Yoshihiro Mizutani
Gen Endo
Yoshiro Suzuki
Akira Todoroki
Source :
Applied Sciences, Vol 8, Iss 7, p 1096 (2018)
Publication Year :
2018
Publisher :
MDPI AG, 2018.

Abstract

This paper uses classical laminate theory (CLT) and experimental methods to predict the longitudinal specific modulus of braided high modulus polyethylene (HMPE) rope without a matrix. When applying conventional CLT, the modulus, braided angle of strand, and packing factor (PF), i.e., the cross-sectional area ratio of the strand to the rope, are required. Because the void (space between strands) and PF of braided rope without a matrix readily change during the application of load, and given the difficulty measuring PF experimentally, it is difficult to predict the modulus by conventional CLT. This paper proposes the use of the unit of N/tex in place of conventional MPa for CLT. This study demonstrates that changes in PF due to void changes can be neglected when using the N/tex unit. The predicted longitudinal specific modulus of the rope using N/tex unit was found to be in qualitatively agreement with the longitudinal modulus measured experimentally.

Details

Language :
English
ISSN :
20763417
Volume :
8
Issue :
7
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.4e40ab8d47c445ab099e38cc4dec1ca
Document Type :
article
Full Text :
https://doi.org/10.3390/app8071096