Structural and Multidisciplinary Optimization

, Volume 54, Issue 4, pp 985–998 | Cite as

Simultaneous parametric material and topology optimization with constrained material grading

  • Jannis GreifensteinEmail author
  • Michael Stingl


We consider the problem of parametric material and simultaneous topology optimization of an elastic continuum. To ensure existence of solutions to the proposed optimization problem and to enable the imposition of a deliberate maximal material grading, two approaches are adopted and combined. The first imposes pointwise bounds on design variable gradients, whilst the second applies a filtering technique based on a convolution product. For the topology optimization, the parametrized material is multiplied with a penalized continuous density variable. We suggest a finite element discretization of the problem and provide a proof of convergence for the finite element solutions to solutions of the continuous problem. The convergence proof also implies the absence of checkerboards. The concepts are demonstrated by means of numerical examples using a number of different material parametrizations and comparing the results to global lower bounds.


Material optimization Topology optimization Slope constraints Density filters 



The authors thank the German Research Foundation (DFG) for funding this research work within Collaborative Research Centre 814, subproject C2.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Mathematical Optimization, Department of MathematicsFriedrich-Alexander-Universität Erlangen-Nürnberg (FAU)ErlangenGermany

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