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