Co-Optimization for 3D Printing Graded-Density Porous Structure and Filling Path Based on Voronoi Skeletons

EasyChair Preprint 12879

Abstract

Porous structures are widely utilized as functional components in multiple industries due to their excellent comprehensive properties. Compared with traditional production processes, 3D printing additive manufacturing exhibits a dominant advantage in flexibility and low expense for fabricating porous structures. However, the complicated geometric morphologies that are constituted by thin-walled elements decrease the mechanical performance of structures due to manufacturing issues. For this reason, a co-optimization method is proposed for designing and manufacturing graded-density porous structures. Manufacturing constraints related to the filling path are incorporated in the structural optimization. The material layout is optimized by graded-density Voronoi elements mapped by Young’s modulus. Finally, the structure is filled by an evenly continuous path without any intersection based on Voronoi skeletons. This research provides a novel idea to enhance the stiffness and promote the integration of material-structure-performance for additive manufacturing porous structures.

Keyphrases: Additive Manufacturing, Integrated design and fabrication, Structural Optimization, path optimization, porous structure

@booklet{EasyChair:12879,
  author    = {Lingwei Xia},
  title     = {Co-Optimization for 3D Printing Graded-Density Porous Structure and Filling Path Based on Voronoi Skeletons},
  howpublished = {EasyChair Preprint 12879},
  year      = {EasyChair, 2024}}