Jigsaw puzzle design of pluripotent origami

Dieleman, Peter; Vasmel, Niek; Waitukaitis, Scott; Hecke, Martin van

doi:10.1038/s41567-019-0677-3

Cited by 80 publications

(75 citation statements)

References 26 publications

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“…The driving mechanism depends on the lengthscale. At the macroscale, folding is driven by energy minimization (e.g., stress relaxation), and thus the folding pathway is deterministic [1][2][3][4][5][6][7][8][9][10][11][12] . By contrast, at the microscale, since folding occurs usually in suspension, the fluctuations in the fluid-structure interaction dominate and folding are stochastic 13,14 .…”

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confidence: 99%

Optimal number of faces for fast self-folding kirigami

2020

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There is an increasing body of research studying how to obtain 3D structures at the microscale from the spontaneous folding of planar templates, using thermal fluctuations as the driving force. Here, combining numerical simulations and analytical calculations, we show that the total folding time of a regular pyramid is a non-monotonic function of the number of faces (N), with a minimum for five faces. The motion of each face is consistent with a Brownian process and folding occurs through a sequence of irreversible binding events between faces. The first one is well-described by a first-passage process in 2D, with a characteristic time that decays with N. By contrast, the subsequent binding events are firstpassage processes in 1D and the time of the last one grows logarithmically with N. It is the interplay between these two different sets of events that explains the non-monotonic behavior. Implications in the self-folding of more complex structures are discussed.

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confidence: 99%

Optimal number of faces for fast self-folding kirigami

2020

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“…Developability, flat-foldability, and rigid foldability are crucial characteristics of an origami pattern 23 , revealing compatibility with the origami-based circuit boards. Nomenclatures and symbols related to the origami structures are defined in Supplementary Note 1 24,25 .…”

Section: Results and Discussion Compatibility Between Origami Structumentioning

confidence: 99%

Miura-ori enabled stretchable circuit boards

Liu

Deng

et al. 2021

npj Flex Electron

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Origami, an ancient form of papercraft, provides a way to develop functional structures for engineering applications. In this paper, we report an approach to design and manufacture a stretchable circuit board (SCB) with origami structures. The benefits of developable, flat-foldable, and rigid-foldable origami-based structures as SCBs are discussed, and a representative structure, Miura fold (or Miura-ori), is chosen to be investigated. Under the constraints induced by the mounted components’ dimensions, the Miura-ori structures for specific applications can be defined. We propose three methods for better fabrication, including direct folding, stiffness modification, and kirigami enhancement, to improve a planar sheet’s foldability. A wearable ECG (electrocardiogram) system based on MO-SCB (Miura-ori enabled SCB) technology is built, and the stretchable portion is made of commercial FPCBs (flexible printed circuit board), providing desired stretchability and reliability. The proposed technology routine is compatible with industrial production and may pave the application of stretchable electronics.

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“…To first design oligomodal architectures, we turn toward combinatorial metamaterials, which is a particularly fruitful paradigm for the design of advanced mechanical functionalities ( 4 , 11 , 12 ). In combinatorial metamaterials, the structural complexity is reduced to a discrete design space, typically, by controlling the orientation of the constitutive unit cells.…”

Section: Combinatorial Analysismentioning

confidence: 99%

“…In combinatorial metamaterials, the structural complexity is reduced to a discrete design space, typically, by controlling the orientation of the constitutive unit cells. Such discreteness makes the design space much easier to explore and has recently been leveraged to create nonperiodic metamaterials with shape-changing ( 4 , 11 ) and topological properties ( 12 ), yet only for single zero-energy mode metamaterials so far. Here, we generalize this combinatorial approach to metamaterials with more than one zero-energy mode.…”

Section: Combinatorial Analysismentioning

confidence: 99%

Oligomodal metamaterials with multifunctional mechanics

Bossart

Dykstra

Laan

et al. 2021

Proc. Natl. Acad. Sci. U.S.A.

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Mechanical metamaterials are artificial composites that exhibit a wide range of advanced functionalities such as negative Poisson’s ratio, shape shifting, topological protection, multistability, extreme strength-to-density ratio, and enhanced energy dissipation. In particular, flexible metamaterials often harness zero-energy deformation modes. To date, such flexible metamaterials have a single property, for example, a single shape change, or are pluripotent, that is, they can have many different responses, but typically require complex actuation protocols. Here, we introduce a class of oligomodal metamaterials that encode a few distinct properties that can be selectively controlled under uniaxial compression. To demonstrate this concept, we introduce a combinatorial design space containing various families of metamaterials. These families include monomodal (i.e., with a single zero-energy deformation mode); oligomodal (i.e., with a constant number of zero-energy deformation modes); and plurimodal (i.e., with many zero-energy deformation modes), whose number increases with system size. We then confirm the multifunctional nature of oligomodal metamaterials using both boundary textures and viscoelasticity. In particular, we realize a metamaterial that has a negative (positive) Poisson’s ratio for low (high) compression rate over a finite range of strains. The ability of our oligomodal metamaterials to host multiple mechanical responses within a single structure paves the way toward multifunctional materials and devices.

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Jigsaw puzzle design of pluripotent origami

Cited by 80 publications

References 26 publications

Optimal number of faces for fast self-folding kirigami

Optimal number of faces for fast self-folding kirigami

Miura-ori enabled stretchable circuit boards

Oligomodal metamaterials with multifunctional mechanics

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