• Corpus ID: 238419634

A spatio-temporal adaptive phase-field fracture method

@article{Labanda2021ASA,
  title={A spatio-temporal adaptive phase-field fracture method},
  author={Nicol{\'a}s Agust{\'i}n Labanda and Luis Felipe Espath and Victor M. Calo},
  journal={ArXiv},
  year={2021},
  volume={abs/2110.03305}
}
We present an energy-preserving mechanic formulation for dynamic quasi-brittle fracture in an Eulerian-Lagrangian formulation, where a second-order phase-field equation controls the damage evolution. The numerical formulation adapts in space and time to bound the errors, solving the mesh-bias issues these models typically suffer. The time-step adaptivity estimates the temporal truncation error of the partial differential equation that governs the solid equilibrium. The second-order generalized… 

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