Towards Development of Sustainable Lightweight 3D Printed Wall Building Envelopes (2023-02)¶

Experimental and Numerical Studies

10.1016/j.cscm.2023.e01945

Cuevas Villalobos Karla, Strzałkowski Jarosław, Kim Ji-Su, Ehm Clemens, Glotz Theresa, Chougan Mehdi, Ghaffar Seyed, Stephan Dietmar, Sikora Paweł
Journal Article - Case Studies in Construction Materials

Abstract

3D printing technology can be of crucial importance in the design of sustainable and energyefficient building envelopes. With this technology, there is the potential to mechanically and thermally optimise the topology of printed walls. Additionally, the printing and infill materials used can be insulating, and thus contributing to the overall reduction of heat loss. To date, limited examples of 3D printed envelopes and information about the thermal and mechanical performance of 3D printed walls are available. This study developed a 3D printable wall element with an insulating property for application in building envelopes. Seven wall topologies are studied through simulations of mechanical and thermal performance using two mixtures: a control mixture (normal-weight) and a lightweight mixture containing expanded thermoplastic microspheres (ETM) for thermal insulation. One wall topology is selected based on the performance of the simulation and printed using both mixtures. The 3D printed envelopes were tested under compressive strength and analysed with the ARAMIS system, a digital image correlation (DIC) technology. Computer simulations and the DIC analysis identified the main causes for failure, which are the inter-filament weakness and the imperfections of the geometry of the printed envelope.

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19 References

19 Citations

BibTeX

@article{cuev_strz_kim_ehm.2023.TDoSL3PWBE,
  author            = "Karla Francisca Cuevas Villalobos and Jarosław Strzałkowski and Ji-Su Kim and Clemens Ehm and Theresa Glotz and Mehdi Chougan and Seyed Hamidreza Ghaffar and Dietmar Stephan and Paweł Sikora",
  title             = "Towards Development of Sustainable Lightweight 3D Printed Wall Building Envelopes: Experimental and Numerical Studies",
  doi               = "10.1016/j.cscm.2023.e01945",
  year              = "2023",
  journal           = "Case Studies in Construction Materials",
}

Formatted Citation

IEEE

K. F. C. Villalobos, “Towards Development of Sustainable Lightweight 3D Printed Wall Building Envelopes: Experimental and Numerical Studies”, Case Studies in Construction Materials, 2023, doi: 10.1016/j.cscm.2023.e01945.

CMOS

Villalobos, Karla Francisca Cuevas, Jarosław Strzałkowski, Ji-Su Kim, Clemens Ehm, Theresa Glotz, Mehdi Chougan, Seyed Hamidreza Ghaffar, Dietmar Stephan, and Paweł Sikora. “Towards Development of Sustainable Lightweight 3D Printed Wall Building Envelopes: Experimental and Numerical Studies”. Case Studies in Construction Materials, 2023. https://doi.org/10.1016/j.cscm.2023.e01945.