A non-intrusive approach of goal-oriented error estimation for evolution problems solved by the finite element method
DOI:
https://doi.org/10.13052/REMN.17.981-992Keywords:
verification, Local error, strict bounds, non-intrusive methods, handbook techniques, pointwise quantities of interestAbstract
In this article, we set up a non-intrusive procedure that yields for strict and highquality error bounds of quantities of interest in linear viscoelasticity problems solved by means of the Finite Element Method. The non-intrusive feature is achieved by introducing, via a partition of unity, enrichment functions in the solution of the adjoint problem (handbook techniques). The resulting goal-oriented error estimation method is thus easy to implement in a FE code and enables to consider trully pointwise quantities of interest.
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