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Reconfigurable soft body trajectories using unidirectionally stretchable composite laminae

Author

Listed:
  • Sang Yup Kim

    (Yale University)

  • Robert Baines

    (Yale University)

  • Joran Booth

    (Yale University)

  • Nikolaos Vasios

    (Harvard University
    Harvard University)

  • Katia Bertoldi

    (Harvard University
    Harvard University)

  • Rebecca Kramer-Bottiglio

    (Yale University)

Abstract

Compliant, continuum structures allow living creatures to perform complex tasks inaccessible to artificial rigid systems. Although advancements in hyper-elastic materials have spurred the development of synthetic soft structures (i.e., artificial muscles), these structures have yet to match the precise control and diversity of motions witnessed in living creatures. Cephalopods tentacles, for example, can undergo multiple trajectories using muscular hydrostat, a structure consisting of aggregated laminae of unidirectional muscle fibers. Here, we present a self-adhesive composite lamina inspired by the structural morphology of the muscular hydrostat, which adheres to any volumetrically expanding soft body to govern its motion trajectory. The composite lamina is stretchable only in one direction due to inextensible continuous fibers unidirectionally embedded within its hyper-elastic matrix. We showcase reconfiguration of inflation trajectories of two- and three-dimensional soft bodies by simply adhering laminae to their surfaces.

Suggested Citation

  • Sang Yup Kim & Robert Baines & Joran Booth & Nikolaos Vasios & Katia Bertoldi & Rebecca Kramer-Bottiglio, 2019. "Reconfigurable soft body trajectories using unidirectionally stretchable composite laminae," Nature Communications, Nature, vol. 10(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11294-7
    DOI: 10.1038/s41467-019-11294-7
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    Cited by:

    1. Chao Zhang & Zhuang Zhang & Yun Peng & Yanlin Zhang & Siqi An & Yunjie Wang & Zirui Zhai & Yan Xu & Hanqing Jiang, 2023. "Plug & play origami modules with all-purpose deformation modes," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Liang Yue & S. Macrae Montgomery & Xiaohao Sun & Luxia Yu & Yuyang Song & Tsuyoshi Nomura & Masato Tanaka & H. Jerry Qi, 2023. "Single-vat single-cure grayscale digital light processing 3D printing of materials with large property difference and high stretchability," Nature Communications, Nature, vol. 14(1), pages 1-12, December.

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