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Research questionHow should deposited filament geometry be modeled to predict 3D concrete-printing buildability accurately?Deposited filaments are often idealized as rectangles in finite-element models, even though extrusion conditions change their cross-sectional shape and interlayer contacts. These simplifications can make predicted buildability differ from the behavior of printed structures.
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Latest papersRecent research connected to this question, newest first.Influence of Extruded Filament Shape on Buildability in 3D Concrete Printing: A Geometry-Informed Deep Learning-FEM ApproachThe evidence concerns layer-activation FEM models informed by material and process parameters, with validation against experiments and parametric studies of rectilinear walls. It compares filament representations under free-flow and layer-pressing deposition, including elliptical and rectangular approximations; the findings are limited to the investigated 3D concrete-printing configurations.research paper · Sep 9, 2026
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