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Computers and Concrete
  Volume 6, Number 3, June 2009 , pages 187-202
DOI: https://doi.org/10.12989/cac.2009.6.3.187
 


Finite element computational modeling of externally bonded CFRP composites flexural behavior in RC beams
Andre Luis Gamino, Tulio Nogueira Bittencourt and Jose Luiz Antunes de Oliveira e Sousa

 
Abstract
    This paper focuses on the flexural behavior of RC beams externally strengthened with Carbon Fiber Reinforced Polymers (CFRP) fabric. A non-linear finite element (FE) analysis strategy is proposed to support the beam flexural behavior experimental analysis. A development system (QUEBRA2D/FEMOOP programs) has been used to accomplish the numerical simulation. Appropriate constitutive models for concrete, rebars, CFRP and bond-slip interfaces have been implemented and adjusted to represent the composite system behavior. Interface and truss finite elements have been implemented (discrete and embedded approaches) for the numerical representation of rebars, interfaces and composites.
 
Key Words
    reinforced concrete; CFRP; non-linear finite element analysis; flexural strengthening.
 
Address
Andre Luis Gamino: University of Campinas, 13083-852 Campinas, Brazil
Tulio Nogueira Bittencourt : University of Sao Paulo, 05508-900, Sao Paulo, Brazil
Jose Luiz Antunes de Oliveira e Sousa : University of Campinas, 13083-852, Campinas, Brazil
 

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