Hostname: page-component-6898cfcb55-w5hgh Total loading time: 0 Render date: 2026-11-11T05:22:38.882Z Has data issue: false hasContentIssue false

Relating phase field and sharp interface approaches tostructural topology optimization

Published online by Cambridge University Press:  05 August 2014

Luise Blank
Affiliation:
Fakultät für Mathematik, Universität Regensburg, 93040 Regensburg, Germany. luise.blank@mathematik.uni-regensburg.de; harald.garcke@mathematik.uni-regensburg.de
Harald Garcke
Affiliation:
Fakultät für Mathematik, Universität Regensburg, 93040 Regensburg, Germany. luise.blank@mathematik.uni-regensburg.de; harald.garcke@mathematik.uni-regensburg.de
M. Hassan Farshbaf-Shaker
Affiliation:
Weierstrass Institute for Applied Analysis and Stochastics, Mohrenstrasse 39, 10117 Berlin, Germany; Hassan.Farshbaf-Shaker@wias-berlin.de
Vanessa Styles
Affiliation:
Department of Mathematics, University of Sussex, Brighton, BN1 9QH, UK; v.styles@sussex.ac.uk

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the 'Save PDF' action button.

A phase field approach for structural topology optimization which allows for topologychanges and multiple materials is analyzed. First order optimality conditions arerigorously derived and it is shown via formally matched asymptoticexpansions that these conditions converge to classical first order conditions obtained inthe context of shape calculus. We also discuss how to deal with triple junctions wheree.g. two materials and the void meet. Finally, we present severalnumerical results for mean compliance problems and a cost involving the least square errorto a target displacement.

Information

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2014