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Topological Mechanics of Origami and Kirigami

Chen, Bryan Gin-Ge ; Liu, Bin ; Evans, Arthur A ; Paulose, Jayson ; Cohen, Itai ; Vitelli, Vincenzo ; Santangelo, C D

Physical review letters, 2016-04, Vol.116 (13), p.135501-135501, Article 135501 [Periódico revisado por pares]

United States

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  • Título:
    Topological Mechanics of Origami and Kirigami
  • Autor: Chen, Bryan Gin-Ge ; Liu, Bin ; Evans, Arthur A ; Paulose, Jayson ; Cohen, Itai ; Vitelli, Vincenzo ; Santangelo, C D
  • Assuntos: Computer programs ; Degrees of freedom ; Folding ; Invariants ; Mathematical analysis ; Metamaterials ; Obstacles ; Topology
  • É parte de: Physical review letters, 2016-04, Vol.116 (13), p.135501-135501, Article 135501
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: Origami and kirigami have emerged as potential tools for the design of mechanical metamaterials whose properties such as curvature, Poisson ratio, and existence of metastable states can be tuned using purely geometric criteria. A major obstacle to exploiting this property is the scarcity of tools to identify and program the flexibility of fold patterns. We exploit a recent connection between spring networks and quantum topological states to design origami with localized folding motions at boundaries and study them both experimentally and theoretically. These folding motions exist due to an underlying topological invariant rather than a local imbalance between constraints and degrees of freedom. We give a simple example of a quasi-1D folding pattern that realizes such topological states. We also demonstrate how to generalize these topological design principles to two dimensions. A striking consequence is that a domain wall between two topologically distinct, mechanically rigid structures is deformable even when constraints locally match the degrees of freedom.
  • Editor: United States
  • Idioma: Inglês

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