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- W4307482893 startingPage "111309" @default.
- W4307482893 abstract "This work aims to explore and design a family of multistable metastructures, which are actuated by rotational motion. The bi-stability design criteria for a single pre-shaped beam unit are studied firstly using an analytical model and finite element method. Based on this bi-stability study, a typical one-layer of this novel rotational motion actuated bistable structure, which is composed of four pre-shaped beams assembled uniformly inside two circular frames, is proposed and fabricated. The mechanical behaviour of this bistable structure represented in terms of moment-angle curves are analyzed by the finite element method and experiments. A parametric analysis is performed to study the influence of geometric parameters of an one-layer multistable metastructure on its bi-stability performance, which provides the guidance to design multistable structures with more layers. Lastly, multistable structures with two layers and three layers, which can achieve large rotations with controllable angle-step and snapping sequence, are designed and studied. Furthermore, this research demonstrates other as-fabricated beams with bi-stability have prospects to design the rotational multistable metastructures. The multistable metastructures proposed in this work create new opportunities to design advanced reconfigurable structures and devices." @default.
- W4307482893 created "2022-11-02" @default.
- W4307482893 creator A5065210874 @default.
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- W4307482893 date "2022-12-01" @default.
- W4307482893 modified "2023-10-16" @default.
- W4307482893 title "Novel rotational motion actuated beam-type multistable metastructures" @default.
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- W4307482893 doi "https://doi.org/10.1016/j.matdes.2022.111309" @default.
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