Three-dimensional metamaterials exhibiting extreme isotropy and negative Poisson's ratio

Zuyu Li,Wei Gao,Michael Yu Wang,Chun H. Wang,Zhen Luo

International Journal of Mechanical Sciences（2023）

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摘要

•A discrete topology optimization method for designing mechanical metamaterials.•Novel 3D metamaterials with ideal isotropy and Poisson's ratios approaching −1.•A series of strut-based microstructures with tunable auxeticity and tunable stiffness.•Numerical simulations for demonstrating effective properties of optimized designs.

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关键词

Topology optimization, Auxetic metamaterials, Unimode metamaterials, Elastic isotropy, Extreme mechanical properties, Tunable properties

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