A Bio-Inspired Solution to Alleviate Anisotropy of 3D Printed Engineered Cementitious Composites (3DP-ECC) (2023-08)¶

Knitting/Tilting Filaments

10.1016/j.autcon.2023.105051

Zhou Wen, McGee Wesley, Gökçe H., Li Victor
Journal Article - Automation in Construction, Vol. 155

Abstract

Widely reported anisotropy in 3D printed cementitious structures has been a primary concern to structural integrity, especially for fiber-reinforced cementitious material, e.g., engineered cementitious composites (ECC). To alleviate the anisotropy present in 3D printed ECC (3DP-ECC), two innovative printing patterns, “knitting” and “tilting” filaments, were proposed, mimicking the natural crossed-lamellar structure of conch shells. 3D spatial paths were designed to allocate tensile/flexural resistance to multiple directions and to create an interwoven interface system to strengthen the structure. Four-point bending tests loading from three different directions were conducted. It was found that knitted and tilted filaments revealed superior or comparable bending performance to cast ECC in two favorable orientations. Furthermore, flexural performance in the weakest orientation was notably improved by knitting and tilting, with up-to-179% increases in flexural strength compared with that of parallel filaments. This novel approach holds great promise in alleviating anisotropy of 3DP-ECC without introducing additional reinforcement.

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56 References

25 Citations

BibTeX

@article{zhou_mcge_gokc_li.2023.ABIStAAo3PECC3E,
  author            = "Wen Zhou and Wesley McGee and H. Süleyman Gökçe and Victor C. Li",
  title             = "A Bio-Inspired Solution to Alleviate Anisotropy of 3D Printed Engineered Cementitious Composites (3DP-ECC): Knitting/Tilting Filaments",
  doi               = "10.1016/j.autcon.2023.105051",
  year              = "2023",
  journal           = "Automation in Construction",
  volume            = "155",
}

Formatted Citation

IEEE

W. Zhou, W. McGee, H. S. Gökçe and V. C. Li, “A Bio-Inspired Solution to Alleviate Anisotropy of 3D Printed Engineered Cementitious Composites (3DP-ECC): Knitting/Tilting Filaments”, Automation in Construction, vol. 155, 2023, doi: 10.1016/j.autcon.2023.105051.

CMOS

Zhou, Wen, Wesley McGee, H. Süleyman Gökçe, and Victor C. Li. “A Bio-Inspired Solution to Alleviate Anisotropy of 3D Printed Engineered Cementitious Composites (3DP-ECC): Knitting/Tilting Filaments”. Automation in Construction 155 (2023). https://doi.org/10.1016/j.autcon.2023.105051.