Programmable stopbands and supratransmission effects in a stacked Miura-origami metastructure

Zhang, Qiwei; Fang, Hongbin; Jian, Xu

doi:10.1103/physreve.101.042206

Cited by 48 publications

(16 citation statements)

References 42 publications

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“…[22,60,62] The use of deformation to tune and transform the band gap of periodic structures with a square array of voids was shown by Bertoldi and Boyce, [22] Figure 1c. Zhang et al [93] reported that by adjusting the layout of the periodic stacked Miura-origami unit cells in origami metastructure, the band gap can be effectively tailored. The activation of wrinkling patterns in multi-material interfaces was considered by Rudykh and Boyce [94] to be another approach to control band gaps by reversible elastic instability.…”

Section: Controlling Elastic Wave Propagation and Mechanical Vibrationsmentioning

confidence: 99%

Foundations for Soft, Smart Matter by Active Mechanical Metamaterials

Pishvar

Harne

2020

Advanced Science

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Emerging interest to synthesize active, engineered matter suggests a future where smart material systems and structures operate autonomously around people, serving diverse roles in engineering, medical, and scientific applications. Similar to biological organisms, a realization of active, engineered matter necessitates functionality culminating from a combination of sensory and control mechanisms in a versatile material frame. Recently, metamaterial platforms with integrated sensing and control have been exploited, so that outstanding non‐natural material behaviors are empowered by synergistic microstructures and controlled by smart materials and systems. This emerging body of science around active mechanical metamaterials offers a first glimpse at future foundations for autonomous engineered systems referred to here as soft, smart matter. Using natural inspirations, synergy across disciplines, and exploiting multiple length scales as well as multiple physics, researchers are devising compelling exemplars of actively controlled metamaterials, inspiring concepts for autonomous engineered matter. While scientific breakthroughs multiply in these fields, future technical challenges remain to be overcome to fulfill the vision of soft, smart matter. This Review surveys the intrinsically multidisciplinary body of science targeted to realize soft, smart matter via innovations in active mechanical metamaterials and proposes ongoing research targets that may deliver the promise of autonomous, engineered matter to full fruition.

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Section: Controlling Elastic Wave Propagation and Mechanical Vibrationsmentioning

confidence: 99%

Foundations for Soft, Smart Matter by Active Mechanical Metamaterials

Pishvar

Harne

2020

Advanced Science

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“…[16,17] These functionalities have been harnessed to design deployable structures, [18,19] impact absorbers, [20][21][22] robotic actuators, [23,24] energy harvesting, [25,26] and micromechanical systems, [27,28] waveguiding systems, [29][30][31] memory [32,33] and logic devices, [34][35][36][37] and morphing elements in architecture. In particular, multistability in metamaterials allows for programming both static and dynamic properties, such as stiffness adaptation, [6,38] tunable bandgaps, [39,40] and quantum valley Hall effect. [41] The ability to generate multiple stable states is particularly compelling since it allows for reversible morphing and memory effects that can be directly programmed in the metamaterial architecture.…”

Section: Introductionmentioning

confidence: 99%

Dome‐Patterned Metamaterial Sheets

et al. 2020

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The properties of conventional materials result from the arrangement of and the interaction between atoms at the nanoscale. Metamaterials have shifted this paradigm by offering property control through structural design at the mesoscale, thus broadening the design space beyond the limits of traditional materials. A family of mechanical metamaterials consisting of soft sheets featuring a patterned array of reconfigurable bistable domes is reported here. The domes in this metamaterial architecture can be reversibly inverted at the local scale to generate programmable multistable shapes and tunable mechanical responses at the global scale. By 3D printing a robotic gripper with energy-storing skin and a structure that can memorize and compute spatially-distributed mechanical signals, it is shown that these metamaterials are an attractive platform for novel mechanologic concepts and open new design opportunities for structures used in robotics, architecture, and biomedical applications.

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“…Particularly, with the introduction of folds, the origami robots would still have sufficient strength and stiffness. In addition, originated from the nonlinear folding kinematics, certain origami structures are well-known for their unorthodox mechanical properties ( Li et al, 2019 ), including negative Poisson’s ratio ( Yasuda and Yang, 2015 ), stiffness re-programmability ( Silverberg et al, 2014 ), structural multistability ( Fang et al, 2017a ; Li and Wang, 2015 , Zhang et al, 2020 , Wu et al, 2020 ), and self-locking ( Fang H. et al, 2018 ), etc. ; they provide brand new possibilities for developing robots with novel or enhanced functionalities.…”

Section: Introductionmentioning

confidence: 99%

Yoshimura-origami Based Earthworm-like Robot With 3-dimensional Locomotion Capability

2021

Self Cite

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Earthworm-like robots have received great attention due to their prominent locomotion abilities in various environments. In this research, by exploiting the extraordinary three-dimensional (3D) deformability of the Yoshimura-origami structure, the state of the art of earthworm-like robots is significantly advanced by enhancing the locomotion capability from 2D to 3D. Specifically, by introducing into the virtual creases, kinematics of the non-rigid-foldable Yoshimura-ori structure is systematically analyzed. In addition to exhibiting large axial deformation, the Yoshimura-ori structure could also bend toward different directions, which, therefore, significantly expands the reachable workspace and makes it possible for the robot to perform turning and rising motions. Based on prototypes made of PETE film, mechanical properties of the Yoshimura-ori structure are also evaluated experimentally, which provides useful guidelines for robot design. With the Yoshimura-ori structure as the skeleton of the robot, a hybrid actuation mechanism consisting of SMA springs, pneumatic balloons, and electromagnets is then proposed and embedded into the robot: the SMA springs are used to bend the origami segments for turning and rising motion, the pneumatic balloons are employed for extending and contracting the origami segments, and the electromagnets serve as anchoring devices. Learning from the earthworm’s locomotion mechanism--retrograde peristalsis wave, locomotion gaits are designed for controlling the robot. Experimental tests indicate that the robot could achieve effective rectilinear, turning, and rising locomotion, thus demonstrating the unique 3D locomotion capability.

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Programmable stopbands and supratransmission effects in a stacked Miura-origami metastructure

Cited by 48 publications

References 42 publications

Foundations for Soft, Smart Matter by Active Mechanical Metamaterials

Foundations for Soft, Smart Matter by Active Mechanical Metamaterials

Dome‐Patterned Metamaterial Sheets

Yoshimura-origami Based Earthworm-like Robot With 3-dimensional Locomotion Capability

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