Berlin 2012 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 24: Functional Materials II
MM 24.4: Vortrag
Dienstag, 27. März 2012, 12:15–12:30, H 1029
Hybrid Simulation of Nucleation Grow under External Forces — Robert Glöckner1, Christian Heiliger2, and •Stefan Kolling1,3 — 1Deutsches Kunststoff-Institut, Abt. Mechanik und Simulation, Darmstadt, Germany — 2Justus Liebig Universität Gießen, I. Physikalisches Institut, Gießen, Germany — 3Technische Hochschule Mittelhessen, Institut für Mechanik und Materialforschung, Gießen, Germany
Polymer (Polypropylene) nucleation grow and morphology dynamics under external forces are simulated by using hybrid simulation techniques.
The ambient phase and its properties are simulated using finite element methods in order to to accomplish for external forces like stress / strain / steady fluid-flow.
Nucleation grow is implemented as user-defined material within the FEM-solver using cellular automata (CA) to describe nucleation grow statisticaly.
Percolation algorithms are used to analyze evolving morphology of the system and provide graph-theoretic techniques for caching intermediate integrating results of the CA's in order to auto-detect areas of similiar behaviour (automatic symmetry detection).