Effect of Sleeve Material on Interfacial Contact Behavior of CFRP-Metal Couples
Publication: Journal of Materials in Civil Engineering
Volume 18, Issue 6
Abstract
A study was carried out on the contact pressure and shear stress at the interface of a carbon-fiber-reinforced polymer (CFRP) rod in contact with aluminum alloy or copper sleeves of different hardness. The main objective was to investigate the effect of the sleeve material on the interfacial sliding behavior under high contact pressures required for the design of wedge anchor systems to grip CFRP rods in prestressed concrete applications. The shear stress increased with the contact pressure; aluminum alloy sleeves generated higher shear stresses than copper sleeves. For both sleeve materials, higher shear stresses resulted from softening sleeves, an effect attributed to the lower yield stress facilitating metal flow, which resulted in a larger contact area between the sleeve and the CFRP rod.
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Acknowledgments
The writers wish to thank the Natural Sciences and Engineering Research Council of Canada for financial support and Hughes Brothers Inc., Seward, Nebraska, for providing the CFRP rods.
References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 18 • Issue 6 • December 2006
Pages: 825 - 830
Copyright
© 2006 ASCE.
History
Received: Aug 11, 2004
Accepted: Aug 10, 2005
Published online: Dec 1, 2006
Published in print: Dec 2006
Notes
Note. Associate Editor: David Trejo
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