This paper presents the results of a nonlinear finite element (FE) investigation of shear criticalGFRP reinforced concrete beams without transverse reinforcement. The non-linear analysis wasconducted to predict the complete load-deflection behaviour, ductility and ultimate capacity. Two differentfinite element code; namely ABAQUS and ADINA, were used in modelling the beams. To model thebehaviour of FRP reinforced concrete beams, the post cracking behaviour of concrete (tension stiffening)needs to be defined properly. This is carried out through a parametric study using different parameterssuch as shear span to depth ratio, depth of beam, and reinforcement ratio. Three dimensional (3D) solidelements were used to model the concrete. In the analysis, nonlinear stress-strain behaviour of concreteand linear stress-strain behaviour of FRP bars were used. The numerical models presented in this paperadopt a displacement–controlled solution. The predicted results from the FE analysis were compared withthe experimental results and a good agreement in terms of the ultimate load carrying capacities, load–deflection behaviours and modes of failures were observed.
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