Structural multiscale topology optimization with stress constraint for additive manufacturing

15 Jul 2019  ·  Auricchio Ferdinando, Bonetti Elena, Carraturo Massimo, Hömberg Dietmar, Reali Alessandro, Rocca Elisabetta ·

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. read more

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Optimization and Control