Modelling of 3D Concrete Printing Based on Computational Fluid Dynamics (2020-10)¶

10.1016/j.cemconres.2020.106256

Comminal Raphaël, da Silva Wilson, Andersen Thomas, Stang Henrik, Spangenberg Jon
Journal Article - Cement and Concrete Research, Vol. 138

Abstract

This paper presents a computational fluid dynamic model of 3D Concrete Printing. The numerical simulation is used to predict the cross-sectional shape of 3D printed segments through “virtual printing” simulations. An experimental parametric study of the layer geometry is also conducted for a wide range of processing printing speeds and nozzle heights. The constitutive behavior of the cement-based mortar used in experiments is characterized by rotational and oscillatory rheological tests, and it is modelled with a Bingham constitutive law. Moreover, two formulations of the constitutive law are used in the simulations: the generalized Newtonian fluid model, and the elasto-visco-plastic fluid. Overall, the numerical results agree well with the experiments, validating the proposed computational fluid dynamics modelling approach. Finally, an example of multi-layer print simulations as well as research prospects are presented.

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18 References

133 Citations

BibTeX

@article{comm_silv_ande_stan.2020.Mo3CPBoCFD,
  author            = "Raphaël Comminal and Wilson Ricardo Leal da Silva and Thomas Juul Andersen and Henrik Stang and Jon Spangenberg",
  title             = "Modelling of 3D Concrete Printing Based on Computational Fluid Dynamics",
  doi               = "10.1016/j.cemconres.2020.106256",
  year              = "2020",
  journal           = "Cement and Concrete Research",
  volume            = "138",
}

Formatted Citation

IEEE

R. Comminal, W. R. L. da Silva, T. J. Andersen, H. Stang and J. Spangenberg, “Modelling of 3D Concrete Printing Based on Computational Fluid Dynamics”, Cement and Concrete Research, vol. 138, 2020, doi: 10.1016/j.cemconres.2020.106256.

CMOS

Comminal, Raphaël, Wilson Ricardo Leal da Silva, Thomas Juul Andersen, Henrik Stang, and Jon Spangenberg. “Modelling of 3D Concrete Printing Based on Computational Fluid Dynamics”. Cement and Concrete Research 138 (2020). https://doi.org/10.1016/j.cemconres.2020.106256.