Numerical Study of RC Beams Strengthened with Fe-Based Shape Memory Alloy Strips Using the NSM Method

This paper presents a finite element (FE) analysis for predicting the flexural behavior of reinforced concrete (RC) beams strengthened with Fe-based shape memory alloy (Fe-SMA) strips using near surface mounted (NSM) method. Experimental results reported in literature were used to verify proposed FE model. analyses conducted OpenSees, general-purpose structural program. The RC beam specimens modeled nonlinear beam-column and fiber element. Concrete 02 model, Steel 01 Pinching 04 model applied concrete, steel reinforcement, Fe-SMA strip element, respectively, was carried out displacement control method based on Newton-Raphson this study accurately predicted initial crack load, yield ultimate load. From parametric analyses, it concluded that an increase compressive strength increases ductility specimen, level recovery stress stiffness specimen.