Study of the high temperature effects on steel structural elements via Finite Element Method

Resumo

This article addresses the analysis of the steel behavior, as a structural material, subjected to high
temperature and then cooled. This study began with the influence of the cooling method on steel elements
at high temperatures questioning, considering the impact this research can bring to day-to-day fire
situations. Thus, to have a better understanding of the consequences of thermal actions on steel, tests were
carried out on the structural parts, under conditions like those of material characterization, at room
temperature and after cooling, using immersion in water and cooling without interference. To validate the
proposed constitutive model, the results obtained are compared by the numerical analysis of finite elements.
Such simulation was performed using the Abaqus software and considering the refinement of the mesh of
the elements for better data accuracy. Thus, the results achieved in the modeling were in accordance with
the results obtained experimentally, so that the numerical model was validated.