Using Topology Optimisation to Influence the Infill Placement of Fused Deposition Modelled Parts

Additive manufacturing continues to see increased growth and adoption across various industries owing to technology improvements and increasing material options. This paper presents a method to optimise the infill structure placement in fused deposition modelling parts. The method uses finite elemen...

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Bibliographic Details
Published in:South African journal of industrial engineering 2023-12, Vol.34 (4), p.91-103
Main Authors: Toth, A.D., Padayachee, J.
Format: Article
Language:English
Subjects:
Additive manufacturing
Algorithms
Deposition
Design
Engineering, Industrial
Finite element analysis
Finite element method
Fused deposition modeling
Geometry
Mechanical properties
Placement
Software packages
Technology
Three dimensional printing
Topology optimization
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Summary:Additive manufacturing continues to see increased growth and adoption across various industries owing to technology improvements and increasing material options. This paper presents a method to optimise the infill structure placement in fused deposition modelling parts. The method uses finite element analysis and the bi-directional evolutionary structural optimisation technique to determine the optimal placement based on stress and validated through testing 3D-printed samples. The results show that multi-infill geometry outperforms traditional rectilinear infill in loading capacity and stiffness. The paper concludes with a real-world application, using this optimisation method on a railway-related part.
ISSN:1012-277X
2224-7890
2224-7890
DOI:10.7166/34-4-2900