Location

London

Event Website

http://www.csce2016.ca/

Description

This paper presents the results of an ongoing experimental investigation examining the effect of fiber orientation and stacking sequence on the behavior of FRP-confined concrete. As part of the experimental study, 100 mm x 200 mm concrete cylinders were jacketed with carbon fiber reinforced polymer (CFRP) sheets and tested under pure axial compressive loading. The specimens were confined using various CFRP stacking sequences, with fibers oriented at 0⁰, 90⁰, and ±45⁰. Furthermore, within each stacking sequence, the numbers of layers was varied from 4 to 8 to examine the effect of number of plies on the behavior of the FRP-confined concrete cylinders. In addition, the research program included a companion set of CFRP coupons made from CFRP laminates having the same properties as the CFRP jackets used in the cylinder series. The preliminary results show that parameters such as fiber orientation, stacking sequence, and number of confinement layers have a direct impact on the strength, ductility and stress-strain behavior of CFRP confined concrete.


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Jun 1st, 12:00 AM Jun 4th, 12:00 AM

MAT-722: EFFECT OF FIBER ORIENTATION ON THE BEHAVIOR OF CFRP CONFINED CONCRETE CYLINDERS

London

This paper presents the results of an ongoing experimental investigation examining the effect of fiber orientation and stacking sequence on the behavior of FRP-confined concrete. As part of the experimental study, 100 mm x 200 mm concrete cylinders were jacketed with carbon fiber reinforced polymer (CFRP) sheets and tested under pure axial compressive loading. The specimens were confined using various CFRP stacking sequences, with fibers oriented at 0⁰, 90⁰, and ±45⁰. Furthermore, within each stacking sequence, the numbers of layers was varied from 4 to 8 to examine the effect of number of plies on the behavior of the FRP-confined concrete cylinders. In addition, the research program included a companion set of CFRP coupons made from CFRP laminates having the same properties as the CFRP jackets used in the cylinder series. The preliminary results show that parameters such as fiber orientation, stacking sequence, and number of confinement layers have a direct impact on the strength, ductility and stress-strain behavior of CFRP confined concrete.

http://ir.lib.uwo.ca/csce2016/London/Materials/17