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Finite element computational modeling of externally bonded CFRP composites flexural behavior in RC beams

2009; Technopress; Volume: 6; Issue: 3 Linguagem: Inglês

10.12989/cac.2009.6.3.187

1598-8198

André Luís Gamino, Túlio Nogueira Bittencourt, José Luiz Antunes de Oliveira e Sousa,

Structural Analysis and Optimization

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.