Numerical solution of reinforced concrete beam using arc-length method

This article discusses numerical solution of a reinforced concrete beam. The modelling was conducted with the rules of the finite element method (Fem). in order to verify the correctness of the assumed material’s models: concrete and reinforcing steel, the results obtained with the arc-length method finite analysis were compared with experimental data. The method had been verified in the beam spatial model, in which concrete crushing at compressive and concrete stiffening at tensile are dominant phenomena. The arc-length method is the only one to offer the possibility of obtaining a complete load-deflection curve with local and global softening.