Steel beam crack propagation simulation and experimental verification

Autores

  • Sebastián Moya Lazo
  • Mauricio Jara Ortiz
  • Ignacio Fuenzalida Henríquez

Palavras-chave:

Salomé-Meca, X-FEM, damage tolerance, crack propagation, steel

Resumo

Steel is a structural material par excellence due to the great ductility it offers, and its excellent behavior
under tensile and bending loads. However, steel can also crack after a significant number of static and dynamic
load cycles. These cracks can be the cause of a later structural failure and, being part of important constructions,
they bring with them a considerable economic loss. During the last years, engineering has studied with
determination the concept of damage tolerance. In this work, two types of commercial steel beams were selected,
where with small interventions to their geometry and inducing a crack in their center, it was possible to study the
propagation of said crack. At the same time, the geometric dimensions and constitutive properties of the tested
beams were entered into the Salomé-Meca finite element software, seeking to compare the experimental behaviors
with those of the simulation. Finally, the tests carried out in the laboratory and the computational simulation
indicated a crack propagation and a new location of the crack front that is millimetrically similar. This shows that
the experimental test is verified with respect to the computational simulation, validating this method to study
tolerance to structural damage.

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Publicado

2024-06-21

Edição

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