Level-set methods for structural topology optimization: a review

Authors:
N. P. Dijk;K. Maute;M. Langelaar;F. Keulen
Affiliations:
Uppsala University, Uppsala, Sweden;University of Colorado, Boulder, USA 80309-0429;Delft University of Technology, CD Delft, The Netherlands 2628;Delft University of Technology, CD Delft, The Netherlands 2628
Venue:
Structural and Multidisciplinary Optimization
Year:
2013

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Abstract

This review paper provides an overview of different level-set methods for structural topology optimization. Level-set methods can be categorized with respect to the level-set-function parameterization, the geometry mapping, the physical/mechanical model, the information and the procedure to update the design and the applied regularization. Different approaches for each of these interlinked components are outlined and compared. Based on this categorization, the convergence behavior of the optimization process is discussed, as well as control over the slope and smoothness of the level-set function, hole nucleation and the relation of level-set methods to other topology optimization methods. The importance of numerical consistency for understanding and studying the behavior of proposed methods is highlighted. This review concludes with recommendations for future research.