Study of the strong prolongation equation for the construction of statically admissible stress fields : implementation and optimization

@inproceedings{Rey2013StudyOT,
  title={Study of the strong prolongation equation for the construction of statically admissible stress fields : implementation and optimization},
  author={Valentine Rey and Pierre Gosselet and Christian Rey},
  year={2013}
}
This paper focuses on the construction of statically admissible stress fields (SA-fields) for a posteriori error estimation. In the context of verification, the recovery of such fields enables to provide strict upper bounds of the energy norm of the discretization error between the known finite element solution and the unavailable exact solution. The reconstruction is a difficult and decisive step insofar as the effectiveness of the estimator strongly depends on the quality of the SA-fields… CONTINUE READING
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