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Acoustic Emission Characters of Glass Fibre Reinforced Polymer Stay Cable

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Usually the stay cables of bridge are made of metal, but that cost lot of maintenance expense. Corrosion of chemistry attacks and fatigue damage can both deteriate the mechanical performance of the stay cables. By adopting advanced material to adapt the extremely harsh environment, research groups in Harbin Institute of technology (HIT) suggested that the GFRP (Glass fibre reinforced polymer) cables can be one suitable choice. This article introduced the acoustic emission (AE) monitoring system into the test for GFRP stay cables. During the destructive test, the damage propagation of the cable can be seen clearly from the AE sensed monitor. Additionally, critical prewarning mechanism was suggested by limiting AE signal amplitudes inside the monitoring system. Another application for identifying damage location at the length direction of the cable was adopted innovatively. It can help figure out which cable at which location overtake the stress level at the real time, the advice suggested by the AE monitoring system can help making decision to mend or change cables. These GFRP material manufactured cables were tested under the Material Test System and finally processed with the assistant of computer science programming.
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Keywords: ACM; AE; GFRP; PREWARNING MECHANISM; STAY CABLE

Document Type: Research Article

Publication date: September 1, 2012

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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