• Media type: E-Book; Report; Text
  • Title: Structural multiscale topology optimization with stress constraint for additive manufacturing
  • Contributor: Auricchio, Ferdinando [Author]; Bonetti, Elena [Author]; Carraturo, Massimo [Author]; Hömberg, Dietmar [Author]; Reali, Alessandro [Author]; Rocca, Elisabetta [Author]
  • imprint: Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik, 2019
  • Issue: published Version
  • Language: English
  • DOI: https://doi.org/10.34657/8237; https://doi.org/10.20347/WIAS.PREPRINT.2615
  • ISSN: 2198-5855
  • Keywords: first-order necessary optimality conditions ; structural topology optimization ; Additive manufacturing ; phase-field method ; functionally graded material
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  • Description: In this paper a phase-field approach for structural topology optimization for a 3D-printing process which includes stress constraint and potentially multiple materials or multiscales is analyzed. First order necessary optimality conditions are rigorously derived and a numerical algorithm which implements the method is presented. A sensitivity study with respect to some parameters is conducted for a two-dimensional cantilever beam problem. Finally, a possible workflow to obtain a 3D-printed object from the numerical solutions is described and the final structure is printed using a fused deposition modeling (FDM) 3D printer.
  • Access State: Open Access