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This research investigated the mechanical behavior via compression tests of several complex structures tri-chiral and anti-tetra-chiral structures made by additive manufacturingAdditive manufacturing, using the VAT photopolymerization technique. Several parameters were varied to see their effect on the mechanical response. The compression tests were conducted in a universal testing machine, while their microstructureMicrostructure was observed in an optical and a scanning electron microscopy. Finite element analysis using Ansys software was done. The best structures for the auxeticAuxetic structure (synclastic) behavior were the anti-tetra-chiral structures, which could lead into better performance in applications such as impact or compression loading.

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Additive Manufacturing of Tri-chiral and Anti-tetra-chiral Auxetic Structures with VAT Photopolymerization

  • 会议论文

  • 发表日期：

    2026年

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  • Omar A. Pulgarín Isaza,
  • Henry A. Colorado L.

摘要

This research investigated the mechanical behavior via compression tests of several complex structures tri-chiral and anti-tetra-chiral structures made by additive manufacturingAdditive manufacturing, using the VAT photopolymerization technique. Several parameters were varied to see their effect on the mechanical response. The compression tests were conducted in a universal testing machine, while their microstructureMicrostructure was observed in an optical and a scanning electron microscopy. Finite element analysis using Ansys software was done. The best structures for the auxeticAuxetic structure (synclastic) behavior were the anti-tetra-chiral structures, which could lead into better performance in applications such as impact or compression loading.