This thesis advances the field of structural engineering by developing a robust numerical model to simulate the behavior of prestressed concrete beams, focusing specifically on the dynamics of steel tendon breakage. Employing the Finite Element Method (FEM) through LS-DYNA, the present study integrates both implicit and explicit analysis methods to achieve a detailed representation of steel and concrete interactions under stress conditions. The research begins with the application of prestress to the steel tendon, followed by an implicit analysis aimed at establishing a static solution for the interaction between the steel tendon and the concrete beam. This phase is critical for understanding the pre-failure stress distribution within the beam.