Modelling and parameter optimization for filament deformation in 3D cementitious material printing using support vector machine

Zhixin Liu, Mingyang Li, Yiwei Weng, Ye Qian, Teck Neng Wong, Ming Jen Tan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)

Abstract

The material flow mechanism affects the printing quality considerably in 3D cementitious material printing (3DCMP) area. A numerical model was developed to investigate the material flow mechanism during the extrusion and deposition process. To quantify the effects of flow mechanism on the filament printing quality, deformation of the printed filament was proposed. Then a Support Vector Machine (SVM) was employed to study various factors on flow mechanism, hence the deformation of the printed filament. The SVM model results showed that deformation of the printed filament is independent of plastic viscosity, however, material yield stress and relative nozzle travel speed significantly affect the deformation of the printed filament. Lastly, an empirical parametric associative model was proposed to predict the filament deformation based on material yield stress and relative nozzle travel speed.

Original languageEnglish
Article number108018
JournalComposites Part B: Engineering
Volume193
DOIs
Publication statusPublished - 15 Jul 2020
Externally publishedYes

Keywords

  • 3D cementitious material printing
  • Combine effects study
  • Filament deformation
  • Flow mechanism
  • Numerical model
  • Support vector machine

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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