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Tension Tests of Aramid FRP Composite Bars Using Acoustic Emission Technique
Performance evaluation of composite rods used as reinforcing bars in concrete structures has been undertaken using acoustic emission (AE) technique. The AE technique has shown promise as a method to establish response characteristics of Aramid Fiber Reinforced Plastic (AFRP) bars under different axial tension levels. This paper discusses the experimental gripping mechanisms used to test AFRP specimens for direct tension, the AE source location method, and the procedure used to eliminate extraneous noises. The behavior of AFRP bars under different tension levels is also discussed in terms of AE parameters, such as number of events and event duration. Finally, this paper discusses a methodology to predict stress levels of AFRP bars using AE parameters, so that this technique can be applied to monitor concrete structures post-tensioned with FRP tendons.
Tension Tests of Aramid FRP Composite Bars Using Acoustic Emission Technique
Performance evaluation of composite rods used as reinforcing bars in concrete structures has been undertaken using acoustic emission (AE) technique. The AE technique has shown promise as a method to establish response characteristics of Aramid Fiber Reinforced Plastic (AFRP) bars under different axial tension levels. This paper discusses the experimental gripping mechanisms used to test AFRP specimens for direct tension, the AE source location method, and the procedure used to eliminate extraneous noises. The behavior of AFRP bars under different tension levels is also discussed in terms of AE parameters, such as number of events and event duration. Finally, this paper discusses a methodology to predict stress levels of AFRP bars using AE parameters, so that this technique can be applied to monitor concrete structures post-tensioned with FRP tendons.
Tension Tests of Aramid FRP Composite Bars Using Acoustic Emission Technique
Sami, Z. (author) / Chen, H. L. (author) / GangaRao, H. V. (author)
A Collection of Expanded Papers on Nondestructive Testing from Structures Congress '93 ; 1993 ; Irvine, California, United States
1995-10-03
Conference paper
Electronic Resource
English
Tension Tests of Aramid FRP Composite Bars Using Acoustic Emission Technique
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