Interval XFEM and its Application to Fracture Mechanics Problems

This paper presents the results of a combination of interval perturbation method and the XFEM (IXFEM) to analyze Linear Elastic Fracture Mechanics problem. Uncertain parameters were expressed as interval variables and sub-intervals perturbation for the elements employed in the analysis. The IXFEM method proved very robust in handling parameters uncertainties in fracture problems.