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Numerical investigations of foam-like materials by nested high-order finite element methods

Citation Link: https://doi.org/10.15480/882.3639
Publikationstyp
Journal Article
Publikationsdatum
2009-09-18
Sprache
English
Author
Sehlhorst, Hans-Georg 
Jänicke, Ralf 
Düster, Alexander 
Rank, Ernst 
Steeb, Holger 
Diebels, Stefan 
Institut
Konstruktion und Festigkeit von Schiffen M-10 
DOI
10.15480/882.3639
TORE-URI
http://hdl.handle.net/11420/5445
Lizenz
https://creativecommons.org/licenses/by-nc/2.0/
Enthalten in
Computational Mechanics 
Volume
45
Issue
1
Start Page
45
End Page
59
Citation
Computational Mechanics 1 (45): 45-59 (2009)
Publisher DOI
10.1007/s00466-009-0414-3
Scopus ID
2-s2.0-70349693647
Publisher
Springer
In this paper we present a multiscale framework suited for geometrically nonlinear computations of foam-like materials applying high-order finite elements (p-FEM). This framework is based on a nested finite element analysis (FEA) on two scales, one nonlinear boundary value problem on the macroscale and k independent nonlinear boundary value problems on the microscale allowing for distributed computing. The two scales are coupled by a numerical projection and homogenization procedure. On the microscale the foam-like structures are discretized by high-order continuum-based finite elements, which are known to be very efficient and robust with respect to locking effects. In our numerical examples we will discuss in detail three characteristic test cases (simple shear, tension and bending). Special emphasis is placed on the material's deformation-induced anisotropy and the macroscopic load-displacement behavior.
Schlagworte
Cellular foams
Homogenization
Large deformations
DDC Class
004: Informatik
530: Physik
Funding Organisations
Deutsche Forschungsgemeinschaft (DFG) 
TUHH
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