Adaptive Analysis of Materials with Strain Softening
Zdeněk Bittnar, Bořek Patzák, Daniel Rypl
Department of Structural Mechanics
Faculty of Civil Engineering
Czech Technical University in Prague
Thákurova 7, 166 29 Prague, Czech Republic
The present paper deals with h-adaptive analysis of quasi-brittle
materials characterized by strain softening. The adopted scalar damage
material model is regularized using the nonlocal continuum concept.
To assess the distribution of the solution error a residual-based
error estimator is employed. This is then integrated with appropriate
refinement strategy into a truly adaptive framework, which is
presented on an example.