Contact force and mechanical loss of multistage cable under tension and bending

A theoretical model for calculating the stress and strain states of cabling structures with different loadings has been developed in this paper. We solve the problem for the first- and second-stage cable with tensile or bending strain. The contact and friction forces between the strands are presente...

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Bibliographic Details
Published in:Acta mechanica Sinica 2016-10, Vol.32 (5), p.891-904
Main Authors: Ru, Yanyun, Yong, Huadong, Zhou, Youhe
Format: Article
Language:English
Subjects:
Bending
Cables
Classical and Continuum Physics
Computational Intelligence
Contact
Contact force
Contact stresses
Engineering
Engineering Fluid Dynamics
Friction
Mechanical properties
Research Paper
Strain
Strands
Theoretical and Applied Mechanics
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Summary:A theoretical model for calculating the stress and strain states of cabling structures with different loadings has been developed in this paper. We solve the problem for the first- and second-stage cable with tensile or bending strain. The contact and friction forces between the strands are presented by two-dimensional contact model. Several theoretical models have been proposed to verify the results when the triplet subjected to the tensile strain, including contact force, contact stresses, and mechanical loss. It is found that loadings will affect the friction force and the mechanical loss of the triplet. The results show that the contact force and mechanical loss are dependent on the twist pitch. A shorter twist pitch can lead to higher contact force, while the trend of mechanical loss with twist pitch is complicated. The mechanical loss may be reduced by adjusting the twist pitch reasonably. The present model provides a simple analysis method to investigate the mechanical behaviors in multistage-structures under different loads.
ISSN:0567-7718
1614-3116
DOI:10.1007/s10409-016-0590-2