 This paper presents a novel approach for modeling post-tension beams using calibrated finite element, FE, models to accurately predict the behavior of the beam under various loads. The FE models were created using hypermesh software and then analyzed using the abacus slash explicit solver. The concrete material was modeled using a concrete damage plasticity model while the steel components were modeled using elastic hardening plastic constitutive models. A Rayleigh mass damping was introduced into the model to ensure good agreement between the numerical and experimental results. The results from the experiments were compared to the numerical simulations and showed good correlation. Additionally, random imperfections observed during the experiments were discussed. This paper provides a comprehensive overview of the modeling process and its application to post-tension beams. This article was authored by Anna Janssi, Adam Stolarski, and Jacek Zikowicz. We are article.tv, links in the description below.