Infill ratio caused substructure and effects on the mechanical response

Bilen Emek Abali

Uppsala University, Sweden


Additive manufacturing enables introducing a substructure into the system, a typical example is the infill ratio option in a slicer software for the fused deposition modeling (FDM). The full material is replaced by a repetitive substructure like a honeycomb. This substructure is often motivated by a topological optimization for weight reduction; however, there is an expense in the mechanical response effected by this multi-scale phenomenon. Generalized mechanics proposes a solution to this so-called metamaterials response and its characterization is discussed by means of a computational homogenization algorithm [1].

[1] Abali, B. E., & Barchiesi, E. (2020). Additive manufacturing introduced substructure and computational determination of metamaterials  parameters by means of the asymptotic  homogenization. Continuum  Mechanics and Thermodynamics, 1-17.