Assembled mechanical metamaterials with integrated functionalities of programmable multistability and multitransition behaviors

He, Jian1; Wang, Yaohui1; Shen, Zhengquan2; Xia, Liang3; Xiong, Yi1

2024-08-01

10.1039/d4mh00906a

MATERIALS HORIZONS   影响因子和分区

2051-6347

2051-6355

["Mechanical metamaterials with integrated functionalities can simultaneously fulfill multiple design requirements through design consolidation, which is highly desirable for weight-sensitive and space-constrained applications. Despite the extensive research on multistable metamaterials, their integration with other functionalities, such as vibration isolation, sensing, and hierarchical energy absorption, remains largely untapped. Here, we report a novel class of mechanical metamaterial featuring programmable multistability and function-oriented multitransition behaviors. This integration is realized through a novel assembly-based design concept that incorporates interchangeable contact block (CB) units into a classical bistable structure. By varying the position, number, and shape of CB units, we can obtain a spectrum of function-oriented transition behaviors, offering reconfigurability through unit replacement. To ensure the rational design of CB, we employ a comprehensive approach that combines theoretical analysis, numerical simulations, and experimental validation to investigate the nonlinear behaviors of these assembled metamaterials, including snap-through instability and contact behaviors. Additionally, we explore design strategies such as 2D arraying and 3D extension to achieve programmable multistability. Furthermore, we demonstrate the versatility of these assembled mechanical metamaterials by constructing digital materials with scalability, reconfigurability, and multidirectionality. The proposed assembly-based design concept breaks new ground in engineering multistable structures with integrated functionalities for deployable structures, robotics, and beyond.","We propose a systematic strategy to create multistable metamaterials with function-oriented multitransition behaviors to satisfy diverse application scenarios by the replacement of designed contact block (CB) plates."]

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China["52105261","52375245"] ; Guangdong Basic and Applied Basic Research Foundation[2022A1515010316] ; Shenzhen Science and Technology Innovation Commission[JCYJ20210324104610028] ; High Level of Special Funds[G03034K003]

Chemistry ; Materials Science

Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary

WOS:001302078900001

ROYAL SOC CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Sch Syst Design & Intelligent Mfg, Shenzhen 518055, Peoples R China
2.Imperial Coll London, Dyson Sch Design Engn, Exhibit Rd, London SW7 2DB, England
3.Huazhong Univ Sci & Technol, State Key Lab Intelligent Mfg Equipment & Technol, Wuhan 430074, Peoples R China

He, Jian,Wang, Yaohui,Shen, Zhengquan,et al. Assembled mechanical metamaterials with integrated functionalities of programmable multistability and multitransition behaviors[J]. MATERIALS HORIZONS,2024.

He, Jian,Wang, Yaohui,Shen, Zhengquan,Xia, Liang,&Xiong, Yi.(2024).Assembled mechanical metamaterials with integrated functionalities of programmable multistability and multitransition behaviors.MATERIALS HORIZONS.

He, Jian,et al."Assembled mechanical metamaterials with integrated functionalities of programmable multistability and multitransition behaviors".MATERIALS HORIZONS (2024).