3D compression-twist lattice metamaterials for surface reconfigurability of future architecture

被引：7
作者：
Yan, Han [1 ]
Zhang, Yi [1 ]
Teng, Xing Chi [1 ]
Jiang, Wei Zhong [1 ]
Xie, Yi Min [2 ]
Wu, Wen Wang [3 ]
Chen, Wei Qiu [4 ,5 ]
Zhang, Chuan Zeng [6 ]
Ren, Xin [1 ]
机构：
[1] Nanjing Tech Univ, Coll Civil Engn, Ctr Innovat Struct, Nanjing 211816, Peoples R China
[2] RMIT Univ, Ctr Innovat Struct & Mat, Sch Engn, Melbourne 3001, Australia
[3] Shanghai Jiao Tong Univ, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China
[4] Zhejiang Univ, Key Lab Soft Machines & Smart Devices Zhejiang Pro, State Key Lab CAD & CG, Hangzhou 310027, Peoples R China
[5] Zhejiang Univ, Dept Engn Mech, Hangzhou 310027, Peoples R China
[6] Univ Siegen, Chair Struct Mech, Dept Civil Engn, Paul Bonatz Str 9-11, D-57076 Siegen, Germany
来源：
COMPOSITE STRUCTURES | 2024年 / 337卷
基金：
中国国家自然科学基金;
关键词：
Mechanical metamaterials; Surface reconfigurability; Shell structures; 3D printing; Intelligent architecture; NEGATIVE POISSONS RATIO; MECHANICAL METAMATERIALS; DESIGN; HONEYCOMBS; INPLANE;
D O I：
10.1016/j.compstruct.2024.118075
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Metamaterials refer to a class of materials with special properties, whose characteristics mainly come from the microstructures designed artificially. Among them, those metamaterials with tunable shape and mechanical properties under external stimuli provide a new inspiration for the design of the multifunctional structures. This work deals with the three-dimensional (3D) compression-twist lattice metamaterials, studies the surface reconfigurability under external forces, and reveals the torsion-bending coupling (TBC) effect of the special metamaterials. To explain the main characteristics of the TBC effect, the deformation mechanism of the metamaterials is analyzed. Combining the finite element method (FEM) and the spherical fitting algorithm, the relationship between the bending angle and the load of the metamaterials after deformation is analyzed and verified by experiments. Finally, a metamaterial module that could be freely transformed between planar and spherical surfaces is envisaged. A faster and greener solution is proposed for the construction of curved surfaces of engineering structures in the future, which promotes the subsequent applications of metamaterials to engineering practice.
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页数：10
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