Computational analysis of crack propagation in structures with imposition of a deformation field

Resumo

Cracks have been present in several types of structures since man started using them. However,
currently, accidents due to loss of structural integrity can be of larger proportions causing great social, financial
and environmental loss since, due to the modern technological advances, the structures are getting bigger and more
complex. Fracture mechanics is the science that studies this type of failure. This work aims to analyze pre-fractured
structures composed of fragile materials subjected to the imposition of deformations, better understanding the
crack behavior in this case and verifying the fracture propagation path. The modeled structures were presented by
Portela et al [1] and the objective of this work is to present a comparison between the paths formed by the crack
propagation with the extended finite element method (XFEM) and the boundary element method (BEM) presented
as a reference.