A multi-scale analytical methodology for the prediction of mechanical properties of 3D-printed materials with continuous fibres

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Abstract

A multi-scale analytical methodology is presented for the prediction of the mechanical properties of 3D-printed
materials with continuous fibres constructed with the fused filament fabrication (FFF) technique. Initially, in
micro-scale, the properties of the individual printed filaments are evaluated using different micro-models. Next,
in meso-scale, the effect of voids is taken into account. Apart from the already existent models, a new concentric
cylinder approach is presented for the evaluation of the effect of voids for when a transversely isotropic matrix is
considered. Finally, the macro-scale properties are approximated by combining plies with different orientations
using classical laminate theory (CLT). The methodology is then validated with previously and newly extracted
data from numerous experiments.
Original languageEnglish
Article number101394
JournalAdditive Manufacturing
Volume36
DOIs
Publication statusPublished - Dec 2020

Keywords

  • Additive manufacturing
  • 3D-printing
  • FFF
  • Mechanical properties
  • Void modelling

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