Mechanical anisotropy of 2D lattice structures.

Autor: Thawon, Itthidet, Fongsamootr, Thongchai, Wanison, Ramnarong, Suttakul, Pana
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Zdroj: AIP Conference Proceedings; 2024, Vol. 3086 Issue 1, p1-7, 7p
Abstrakt: Two-dimensional (2D) lattice structures are attractive metamaterials because they can be designed to have lightweight features and desirable properties. The anisotropic behavior of the lattice structures can help design engineers develop lattice structures suitable for applied load directions. This study described the degree of anisotropy of the lattices' elastic properties, with a focus on unit cells having various patterns and orientations. The mechanical anisotropy of lattice structures constructed of square, body-centered square, hexagonal, and diamond unit cells was analyzed using analytical techniques. The closed-form expressions and the transformation equations were utilized to determine the degree of anisotropy exhibited by these structures, which was subsequently represented by means of polar plots of their mechanical properties. Moreover, the anisotropic polar plots allowed for a detailed description of the mechanical performance of the lattice structures with varying unit cells, providing valuable insights into their underlying physical mechanisms. Finally, the accuracy and reliability of the obtained results were confirmed by means of rigorous finite element simulations, thereby enhancing the robustness and validity of the research findings. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index