Bending Behavior of Helically Wrapped Cables
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VIEW THE REPLYPublication: Journal of Engineering Mechanics
Volume 131, Issue 5
Abstract
A mesoscale mechanical model of the bending behavior of helically wrapped cables under tension is developed. The model accounts for the nonlinear dissipative behavior of the cable arising from the slippage of wires under friction forces. It is shown that the bending stiffness rapidly diminishes with increasing cable curvature, over a range that can be as large as 2 orders of magnitude. The model can be used to assess the static and dynamic response of helically wrapped cables in such applications as conductors in substations and transmission lines subjected to earthquake effects, where significant changes in the cable curvature may occur.
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Acknowledgments
This paper is based on research supported by the Lifelines Program of the Pacific Earthquake Engineering Research Center funded by the Pacific Gas & Electric Co. and the California Energy Commission. Partial support was also provided by the Earthquake Engineering Research Centers Program of the National Science Foundation under Award No. EEC-9701568. This support is gratefully acknowledged. The writers also wish to thank Eric Fujisaki of PG&E, with whom valuable discussions were held throughout the course of this research.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 131 • Issue 5 • May 2005
Pages: 500 - 511
Copyright
© 2005 ASCE.
History
Received: May 28, 2004
Accepted: Oct 29, 2004
Published online: May 1, 2005
Published in print: May 2005
Notes
Note. Associate Editor: Majid T. Manzari
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