STUDY OF POLYMOMIAL ENRICHMENT FOR ANALYSIS OF STRUCTURES IN DAMAGE PROCESS USING S/GFEM

Resumo

This work aimed to implement polynomial enrichment functions, according to the strategy of
the Stabilized Generalized Finite Element Method (S/GFEM), for application in simulations of failure
problems in structures using a bilinear damage model for quasi-brittle materials. The results were
verified by comparison with experimental curves drawn from the three-point bending test in central
notched beam. The efficiency and accuracy of the polynomial S/GFEM were then tested to improve the
prediction of the rupture behavior over a conventional Finite Element analysis. This has become more
evident in simulations with coarse meshes, presenting results with precision equivalent to others found
in the literature, but with a much smaller number of elements.