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Thermally active programmable metamaterials with holey tilted struts

Author(s): ORCID

ORCID
Medium: journal article
Language(s): English
Published in: Smart Materials and Structures, , n. 1, v. 33
Page(s): 015006
DOI: 10.1088/1361-665x/ad0d0d
Abstract:

Bistable transition is often applied in the design of microstructures in metamaterials. In this study, we introduce a series of strategically placed holes in the tilted struts, and observe, through numerical and experimental analysis, an effect of the perforation on the snap-through buckling behavior of the structure. By infilling the holes with thermal-sensitive polymer bars, we realize actively tuning the local stiffness of the holey struts, thereby enabling a means to switch the metamaterial between bistable and monostable states. Furthermore, we propose a multi-stable metamaterial by stacking bistable units with different arrange of infilled and empty holes. The designed metamaterial demonstrates a progressive restoration from the deformed shape to its original shape as the environment temperature reaches up to certain values. These findings highlight the potential of holey-type bistable metamaterials in the design of actuators, deployable structures, and reusable energy absorbers.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1088/1361-665x/ad0d0d.
  • About this
    data sheet
  • Reference-ID
    10748424
  • Published on:
    14/01/2024
  • Last updated on:
    14/01/2024
 
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