Mechanical metamaterials based on origami and kirigami

2021 ◽  
Vol 8 (4) ◽  
pp. 041319
Author(s):  
Zirui Zhai ◽  
Lingling Wu ◽  
Hanqing Jiang
Keyword(s):  
Mechanical Metamaterials

Multi-Scale Aeroelastic Analysis of Wings with Lattice-Based Mechanical Metamaterials

2021 ◽  
Author(s):  
Natsuki Tsushima ◽  
Ryo Higuchi ◽  
Hitoshi Arizono ◽  
Masato Tamayama
Keyword(s):  
Multi Scale ◽  
Mechanical Metamaterials ◽  
Aeroelastic Analysis

Modeling mechanical metamaterials - a (non-objective) perspective

2020 ◽  
Author(s):  
Dennis M. Kochmann
Keyword(s):  
Mechanical Metamaterials

scholarly journals Hierarchical mechanical metamaterials built with scalable tristable elements for ternary logic operation and amplitude modulation

2021 ◽  
Vol 7 (9) ◽  
pp. eabf1966
Author(s):  
Hang Zhang ◽  
Jun Wu ◽  
Daining Fang ◽  
Yihui Zhang
Keyword(s):  
Structural Diversity ◽  
Cell Number ◽  
Structural Elements ◽  
Ternary Logic ◽  
Stable States ◽  
One Dimensional ◽  
Logic Operation ◽  
Artificial Materials ◽  
Mechanical Metamaterials ◽  
Unit Cells

Multistable mechanical metamaterials are artificial materials whose microarchitectures offer more than two different stable configurations. Existing multistable mechanical metamaterials mainly rely on origami/kirigami-inspired designs, snap-through instability, and microstructured soft mechanisms, with mostly bistable fundamental unit cells. Scalable, tristable structural elements that can be built up to form mechanical metamaterials with an extremely large number of programmable stable configurations remains illusive. Here, we harness the elastic tensile/compressive asymmetry of kirigami microstructures to design a class of scalable X-shaped tristable structures. Using these structure as building block elements, hierarchical mechanical metamaterials with one-dimensional (1D) cylindrical geometries, 2D square lattices, and 3D cubic/octahedral lattices are designed and demonstrated, with capabilities of torsional multistability or independent controlled multidirectional multistability. The number of stable states increases exponentially with the cell number of mechanical metamaterials. The versatile multistability and structural diversity allow demonstrative applications in mechanical ternary logic operators and amplitude modulators with unusual functionalities.

scholarly journals Digital logic gates in soft, conductive mechanical metamaterials

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Charles El Helou ◽  
Philip R. Buskohl ◽  
Christopher E. Tabor ◽  
Ryan L. Harne
Keyword(s):  
Integrated Circuits ◽  
Electronic Materials ◽  
Polymer Networks ◽  
Conductive Polymer ◽  
Network Connectivity ◽  
Logic Gates ◽  
Boolean Logic ◽  
Digital Logic ◽  
Mechanical Metamaterials ◽  
Logic Operations

AbstractIntegrated circuits utilize networked logic gates to compute Boolean logic operations that are the foundation of modern computation and electronics. With the emergence of flexible electronic materials and devices, an opportunity exists to formulate digital logic from compliant, conductive materials. Here, we introduce a general method of leveraging cellular, mechanical metamaterials composed of conductive polymers to realize all digital logic gates and gate assemblies. We establish a method for applying conductive polymer networks to metamaterial constituents and correlate mechanical buckling modes with network connectivity. With this foundation, each of the conventional logic gates is realized in an equivalent mechanical metamaterial, leading to soft, conductive matter that thinks about applied mechanical stress. These findings may advance the growing fields of soft robotics and smart mechanical matter, and may be leveraged across length scales and physics.

Programmable mechanical metamaterials based on hierarchical rotating structures

2021 ◽  
Vol 216 ◽  
pp. 145-155
Author(s):  
Xiang Li ◽  
Rong Fan ◽  
Zhengjie Fan ◽  
Yang Lu
Keyword(s):  
Mechanical Metamaterials

scholarly journals Can confined mechanical metamaterials replace adhesives?

2021 ◽  
pp. 101411
Author(s):  
Adrianos E.F. Athanasiadis ◽  
Marcelo A. Dias ◽  
Michal K. Budzik
Keyword(s):  
Mechanical Metamaterials

3D gradient auxetic soft mechanical metamaterials fabricated by additive manufacturing

2021 ◽  
Vol 118 (14) ◽  
pp. 141904
Author(s):  
Reza Hedayati ◽  
Aysun Güven ◽  
Sybrand van der Zwaag
Keyword(s):  
Additive Manufacturing ◽  
Mechanical Metamaterials

scholarly journals A characteristic length scale causes anomalous size effects and boundary programmability in mechanical metamaterials

2017 ◽  
Vol 14 (1) ◽  
pp. 40-44 ◽  
Author(s):  
Corentin Coulais ◽  
Chris Kettenis ◽  
Martin van Hecke
Keyword(s):  
Size Effects ◽  
Characteristic Length ◽  
Length Scale ◽  
Characteristic Length Scale ◽  
Mechanical Metamaterials

scholarly journals Large scale mechanical metamaterials as seismic shields

2016 ◽  
Vol 18 (8) ◽  
pp. 083041 ◽  
Author(s):  
Marco Miniaci ◽  
Anastasiia Krushynska ◽  
Federico Bosia ◽  
Nicola M Pugno
Keyword(s):  
Large Scale ◽  
Mechanical Metamaterials
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