TY  - CHAP
A1  - Häfner, Stefan
A1  - Eckardt, Stefan
A1  - Könke, Carsten
T1  - A geometrical inclusion-matrix model for the finite element analysis of concrete at multiple scales
N2  - This paper introduces a method to generate adequate inclusion-matrix geometries of concrete in two and three dimensions, which are independent of any specific numerical discretization. The article starts with an analysis on shapes of natural aggregates and discusses corresponding mathematical realizations. As a first prototype a two-dimensional generation of a mesoscale model is introduced. Particle size distribution functions are analysed and prepared for simulating an adequate three-dimensional representation of the aggregates within a concrete structure. A sample geometry of a three-dimensional test cube is generated and the finite element analysis of its heterogeneous geometry by a uniform mesh is presented. Concluding, aspects of a multiscale analysis are discussed and possible enhancements are proposed.
KW  - Beton
KW  - Dreidimensionales Modell
KW  - Finite-Elemente-Methode
Y1  - 2003
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-3018
ER  - 
TY  - JOUR
A1  - Häfner, Stefan
A1  - Eckardt, Stefan
A1  - Luther, Torsten
A1  - Könke, Carsten
T1  - Mesoscale modeling of concrete: Geometry and numerics
JF  - Computers and Structures
N2  - Mesoscale modeling of concrete: Geometry and numerics
KW  - Angewandte Mathematik
KW  - Strukturmechanik
Y1  - 2006
SP  - 450
EP  - 461
ER  - 
TY  - JOUR
A1  - Könke, Carsten
A1  - Eckardt, Stefan
A1  - Häfner, Stefan
A1  - Luther, Torsten
A1  - Unger, Jörg F.
T1  - Multiscale simulation methods in damage prediction of brittle and ductile materials
JF  - International Journal for Multiscale Computational Engineering
N2  - Multiscale simulation methods in damage prediction of brittle and ductile materials
KW  - Angewandte Mathematik
KW  - Strukturmechanik
Y1  - 2010
SP  - 17
EP  - 36
ER  -