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 - Kirichuk, A. A1 - Most, Thomas A1 - Bucher, Christian T1 - Numerical nonlinear analysis of kinematically excited shells JF - International Journal for Computational Civil and Structural Engineering N2 - Numerical nonlinear analysis of kinematically excited shells KW - Angewandte Mathematik KW - Strukturmechanik Y1 - 2003 SP - 61 EP - 74 ER - TY - JOUR A1 - Savaidis, G. A1 - Savaidis, A. A1 - Schliebner, R. A1 - Vormwald, Michael T1 - Evaluation of fatigue of fillet welded joints in vehicle components under multiaxial service loads JF - European Structural Integrity Society N2 - Evaluation of fatigue of fillet welded joints in vehicle components under multiaxial service loads KW - Angewandte Mathematik KW - Strukturmechanik Y1 - 2003 SP - 23 EP - 42 ER - TY - JOUR A1 - Döring, R. A1 - Hoffmeyer, J. A1 - Seeger, T. A1 - Vormwald, Michael T1 - A plasticity model for calculating stress–strain sequences under multiaxial nonproportional cyclic loading JF - Computational Materials Science N2 - A plasticity model for calculating stress–strain sequences under multiaxial nonproportional cyclic loading KW - Angewandte Mathematik KW - Strukturmechanik Y1 - 2003 SP - 587 EP - 596 ER -