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Towards Fully Discrete Modelling of Brittle Fracture Modes in Composite Materials

  • Iarve, Endel (University of Texas at Arlington)
  • Hoos, Kevin (University of Texas at Arlington Research Ins)
  • Zhou, Eric (University of Dayton Research Institute)
  • Ballard, Michael (Air Force Research Laboratory)
  • Mollenhauer, David (Air Force Research Laboratory)

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Discrete Damage Modeling (DDM) is a powerful tool for modeling the evolution and interaction of multiple damage modes in composite materials. However, extending the DDM to comprehensive failure analysis is not readily achieved due to technical difficulty of modelling arbitrary intersecting crack networks by using DDM. Recent development in Hierarchical Regularized eXtended FEM are further extended k to enable DDM fracture modelling in scenarios where only property degradation based CDM methods based on smeared crack model and explicit regularization by element size were previously employed.

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