Plastically Isotropic Mechanical Metamaterials with Discrete Assemblies DOI Open Access

Nan Zhu,

Yuanming Xu, Xin Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Abstract Mechanical metamaterials (MMs) exhibit unique properties by manipulating the geometry of individual cells and their overall arrangement into structures. Historically, most MMs are generally fabricated as continuous, anisotropic structures with additive manufacturing, which offers high precision efficiency but is inherently limited process machine constraints. To address this issue, inspired traditional Chinese mortise tenon, a novel construction system for plastically isotropic based on customized discrete assembly finite set slender tubular parts proposed. Discrete assembled thin‐walled mechanical (DATWMMs) can be spatially constructed exotic such plastic crushing robustness omnidirectional self‐locking capacity. In addition, endows DATWMMs tunable energy absorption through constituent different sizes, sectional configurations, parent materials. This paper adopts combined experimental computational method to investigate static/dynamic behaviors deformation mechanisms DATWMMs. outperform comparable modular in terms specific up 3600%. Overall, leverages an incremental overcome manufacturing machine‐related scale limitations, eliminate printing process‐induced material anisotropy, achieve interchangeability consistent across part types.

Language: Английский

Plastically Isotropic Mechanical Metamaterials with Discrete Assemblies DOI Open Access

Nan Zhu,

Yuanming Xu, Xin Wang

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Abstract Mechanical metamaterials (MMs) exhibit unique properties by manipulating the geometry of individual cells and their overall arrangement into structures. Historically, most MMs are generally fabricated as continuous, anisotropic structures with additive manufacturing, which offers high precision efficiency but is inherently limited process machine constraints. To address this issue, inspired traditional Chinese mortise tenon, a novel construction system for plastically isotropic based on customized discrete assembly finite set slender tubular parts proposed. Discrete assembled thin‐walled mechanical (DATWMMs) can be spatially constructed exotic such plastic crushing robustness omnidirectional self‐locking capacity. In addition, endows DATWMMs tunable energy absorption through constituent different sizes, sectional configurations, parent materials. This paper adopts combined experimental computational method to investigate static/dynamic behaviors deformation mechanisms DATWMMs. outperform comparable modular in terms specific up 3600%. Overall, leverages an incremental overcome manufacturing machine‐related scale limitations, eliminate printing process‐induced material anisotropy, achieve interchangeability consistent across part types.

Language: Английский

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