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International Journal for Multiscale Computational Engineering
Impact-faktor: 1.016 5-jähriger Impact-Faktor: 1.194 SJR: 0.554 SNIP: 0.82 CiteScore™: 2

ISSN Druckformat: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.v8.i3.60
pages 303-317

Toward Two-Scale Adaptive FEM Modeling of Nonlinear Heterogeneous Materials

Marta Serafin
Institute for Computational Civil Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland
Witold Cecot
Institute for Computational Civil Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland

ABSTRAKT

Two-scale modeling of periodic metal matrix composites reinforced with metallic inclusions is presented in this paper. The adaptive finite element method (FEM) is used to approximate solutions of elastic or inelastic problems at both levels in order to improve efficiency of computation. Mesh adaptation at the macroscale is more challenging, since each refinement introduces new representative volume elements for which the loading history is typically unknown but necessary for further computation. At the microscale, the mesh adaptation enables generation of the initial discretization independently of the material heterogeneity.


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