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Micromechanical and macromechanical modelling of foams: Identification of Cosserat parameters
Author(s) -
Diebels S.,
Geringer A.
Publication year - 2014
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.201200271
Subject(s) - continuum hypothesis , continuum mechanics , materials science , computer science , mechanics , mathematics , statistical physics , physics , mathematical analysis
The classical continuum model does not describe the mechanical behaviour of cellular materials. To model the size‐dependent mechanical properties of these materials, the extended continuum models such as the micropolar approach can be used. The reference data is extracted from the virtual experiments performed on an artificial open‐cell foam specimens. With the proper set of the Cosserat parameters the detailed microstructural model can be described on the macroscopic level using the extended continuum approach. The parameter identification task is defined as a minimisation task, which is solved using the evolutionary computational framework.