A three‐dimensional hybrid finite element — spectral boundary integral method for modeling earthquakes in complex unbounded domains

@article{Albertini2021ATH,
  title={A three‐dimensional hybrid finite element — spectral boundary integral method for modeling earthquakes in complex unbounded domains},
  author={Gabriele Albertini and Ahmed E Elbanna and David S. Kammer},
  journal={International Journal for Numerical Methods in Engineering},
  year={2021},
  volume={122},
  pages={6905 - 6923}
}
We present a 3D hybrid method which combines the finite element method (FEM) and the spectral boundary integral method (SBIM) to model nonlinear problems in unbounded domains. The flexibility of FEM is used to model the complex, heterogeneous, and nonlinear part— such as the dynamic rupture along a fault with near fault plasticity—and the high accuracy and computational efficiency of SBIM is used to simulate the exterior half spaces perfectly truncating all incident waves. The exact truncation… 
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