A phase-aware error estimator and two coarsening algorithms let pixelized microstructure meshes be coarsened by about 90 percent with modest error increase, validated on 2D elasticity examples.
Abdulle, Analysis of the heterogeneous multiscale FEM for problems in elasticity, Math
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Error Analysis for Quadtree-Type Mesh-Coarsening Algorithms Adapted to Pixelized Heterogeneous Microstructures
A phase-aware error estimator and two coarsening algorithms let pixelized microstructure meshes be coarsened by about 90 percent with modest error increase, validated on 2D elasticity examples.