Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.3639
Publisher DOI: 10.1007/s00466-009-0414-3
Title: Numerical investigations of foam-like materials by nested high-order finite element methods
Language: English
Authors: Sehlhorst, Hans-Georg 
Jänicke, Ralf 
Düster, Alexander 
Rank, Ernst 
Steeb, Holger 
Diebels, Stefan 
Keywords: Cellular foams; Homogenization; Large deformations
Issue Date: 18-Sep-2009
Publisher: Springer
Source: Computational Mechanics 1 (45): 45-59 (2009)
Abstract (english): 
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.
URI: http://hdl.handle.net/11420/5445
DOI: 10.15480/882.3639
ISSN: 0178-7675
Journal: Computational Mechanics 
Institute: Konstruktion und Festigkeit von Schiffen M-10 
Document Type: Article
Funded by: Deutsche Forschungsgemeinschaft (DFG) 
License: CC BY-NC 2.0 (Attribution-NonCommercial) CC BY-NC 2.0 (Attribution-NonCommercial)
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