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A microcrack‐based continuum damage model with application towards refractories
Author(s) -
Gundlach Janto,
Henneberg Dimitri,
Ricoeur Andreas
Publication year - 2016
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201610053
Subject(s) - homogenization (climate) , brittleness , classification of discontinuities , finite element method , ceramic , materials science , refractory (planetary science) , damage mechanics , composite material , structural engineering , engineering , mathematics , biodiversity , ecology , mathematical analysis , biology
Abstract The present work discusses numerical results of damage evolution due to thermoshock processes at refractory ceramics. Damage patterns have been generated using a two‐scale approach for brittle materials, implemented into a finite element framework. For this purpose, a cell model has been employed, incorporating cracks on a microscopic level. The impact of these discontinuities on macroscopic material properties and damage evolution is determined with the help of analytical homogenization techniques. Finally, the potential of the numerical tool is demonstrated by means of refractory bricks, being imposed by thermomechanical loading. (© 2016 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)