Recovery-based a posteriori error analysis for plate bending problems

04/05/2021
by   Yuwen Li, et al.
0

We present two new recovery-based a posteriori error estimates for the Hellan–Herrmann–Johnson method in Kirchhoff–Love plate theory. The first error estimator uses a postprocessed deflection and controls the L^2 moment error and the discrete H^2 deflection error. The second one controls the L^2× H^1 total error and utilizes the postprocessed moment field and deflection and superconvergence analysis in both variables. The effectiveness of the theoretical results is numerically validated in several experiments.

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