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Fibers 2016, 4(1), 4; doi:10.3390/fib4010004

Experiment-Based Sensitivity Analysis of Scaled Carbon-Fiber-Reinforced Elastomeric Isolators in Bonded Applications

School of Engineering, The University of British Columbia, Kelowna, BC V1V1V7, Canada
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Academic Editor: Mahmoud Reda Taha
Received: 6 November 2015 / Accepted: 14 January 2016 / Published: 27 January 2016
(This article belongs to the Special Issue Fiber Reinforced Polymers (FRP) for Infrastructure Applications)
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Abstract

Fiber-reinforced elastomeric isolators (FREIs) are a new type of elastomeric base isolation systems. Producing FREIs in the form of long laminated pads and cutting them to the required size significantly reduces the time and cost of the manufacturing process. Due to the lack of adequate information on the performance of FREIs in bonded applications, the goal of this study is to assess the performance sensitivity of 1/4-scale carbon-FREIs based on the experimental tests. The scaled carbon-FREIs are manufactured using a fast cold-vulcanization process. The effect of several factors including the vertical pressure, the lateral cyclic rate, the number of rubber layers, and the thickness of carbon fiber-reinforced layers are explored on the cyclic behavior of rubber bearings. Results show that the effect of vertical pressure on the lateral response of base isolators is negligible. However, decreasing the cyclic loading rate increases the lateral flexibility and the damping capacity. Additionally, carbon fiber-reinforced layers can be considered as a minor source of energy dissipation. View Full-Text
Keywords: fiber-reinforced elastomeric isolator; carbon fiber fabric; manufacturing process; sensitivity analysis; effective horizontal stiffness; equivalent viscous damping fiber-reinforced elastomeric isolator; carbon fiber fabric; manufacturing process; sensitivity analysis; effective horizontal stiffness; equivalent viscous damping
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hedayati Dezfuli, F.; Alam, M.S. Experiment-Based Sensitivity Analysis of Scaled Carbon-Fiber-Reinforced Elastomeric Isolators in Bonded Applications. Fibers 2016, 4, 4.

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