I am new to Ansys and am trying to model an RC beam subjected to four-point bending using Ansys APDL. I am using SOLID65 for concrete and LINK180 for reinforcement. Apart from linear isotropic material properties, I gave concrete properties with proper units and bilinear mises plasticity property to steel reinforcement.
The problem is I am not getting the deflection which I obtained experimentally. Also, the model doesn't converge at the load that was determined experimentally. Any suggestions?