Relating phase field and sharp interface approaches to structural topology optimization

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Date
2013
Volume
1788
Issue
Journal
Series Titel
WIAS Preprints
Book Title
Publisher
Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik
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Abstract

A phase field approach for structural topology optimization which allows for topology changes and multiple materials is analyzed. First order optimality conditions are rigorously derived and it is shown via formally matched asymptotic expansions that these conditions converge to classical first order conditions obtained in the context of shape calculus. We also discuss how to deal with triple junctions where e.g. two materials and the void meet. Finally, we present several numerical results for mean compliance problems and a cost involving the least square error to a target displacement.

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Citation
Blank, L., Farshbaf-Shaker, M. H., Garcke, H., & Styles, V. (2013). Relating phase field and sharp interface approaches to structural topology optimization. Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik.
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