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Paper Information

Journal:   INTERNATIONAL JOURNAL OF INDUSTRIAL ENGINEERING AND PRODUCTION MANAGEMENT (IJIE) (INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE) (PERSIAN)   SUMMER 2007 , Volume 18 , Number 2; Page(s) 55 To 64.
 
Paper: 

PREDICTION OF THE BEHAVIOR OF CONCRETE CONFINED WITH FRP COMPOSITES USING FE METHOD

 
 
Author(s):  MOSTOUFINEZHAD D., SAADATMAND H.
 
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Abstract: 

Strength and ductility enhancement and the plastic behavior of concrete in RC members are the consequences of concrete confinement. In the current study, the prediction of the behavior of concrete confined with CFRP composites has been evaluated using nonlinear analysis. To do so, the results of 29 experimental studies on the concrete confined with unidirectional CFRP were selected from the literature. The stress-strain relation of the selected cases was approximated with bi-linear curves; accordingly some' equations were extracted for nonlinear behavior of confined concrete by regression. The credibility of the proposed equations was verified using 16 other independent experimental data.
The proposed equations are capable to be used in the concrete confinement modeling, using Tsai-Wu failure criterion for the hoop strain fracture of the bonded CFRP to concrete. To fulfill the current study, some concrete specimens confined with FRP composites with particular characteristics were modeled in ANSYS software.
The results showed the suitability of the model, therefore the extracted stress-strain curves from the software could be fairly used in the parametric studies on concrete confinement under axial load and flexural moment.

 
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