Morphing matter: from mechanical principles to robotic applications

Soft Science, Год журнала: 2023, Номер 3(4)

Опубликована: Окт. 31, 2023

The adaptability of natural organisms in altering body shapes response to the environment has inspired development artificial morphing matter. These materials encode ability transform their geometrical configurations specific stimuli and have diverse applications soft robotics, wearable electronics, biomedical devices. However, achieving intricate three-dimensional from a two-dimensional flat state is challenging, as it requires manipulations surface curvature controlled manner. In this review, we first summarize mechanical principles extensively explored for realizing matter, both at material structural levels. We then highlight its robotics field. Moreover, offer insights into open challenges opportunities that rapidly growing field faces. This review aims inspire researchers uncover innovative working create multifunctional matter various engineering fields.

Язык: Английский

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Encoding and Storage of Information in Mechanical Metamaterials

Advanced Science, Год журнала: 2023, Номер 10(20)

Опубликована: Апрель 21, 2023

Information processing using material's own properties has gained increasing interest. Mechanical metamaterials, due to their diversity of deformation modes and wide design space, can be used realize information processing, such as computing storage. Here a mechanical metamaterial system is demonstrated for material-based encoding storage data through programmed reconfigurations the metamaterial's structured building blocks. Sequential decoding are achieved in three-dimensional (3D) printed pixelated via kirigami-based "pixels" with programmable, temperature-dependent bistability. The multistep messages texts surfaces arrays binary data, then them by applying predetermined stretching heating regimen sequentially retrieve layers stored display on its surface. This approach serves general framework enable metamaterials.

Язык: Английский

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Reversible negative compressibility metamaterials inspired by braess's paradox

Smart Materials and Structures, Год журнала: 2024, Номер 33(7), С. 075036 - 075036

Опубликована: Июнь 28, 2024

Abstract Negative compressibility metamaterials have attracted significant attention due to their distinctive properties and promising applications. has been interpreted in two ways. Regarding the negative induced by a uniaxial load, it can only occur abruptly when load reaches certain threshold. Hence, be termed as transient compressibility. However, fabrication experiments of such rarely reported. Herein, we demonstrate them. Inspired Braess’s paradox, novel mechanical model is proposed with reversible It shows multiple types force responses during loading-unloading cycle, including hysteresis. Phase diagrams are employed visualize relationship between system parameters. Besides, explicit expressions for conditions intensity obtained design optimization. The replacement method inspired compliant mechanism then introduced derive specific unit cell structures, thus avoiding intuition-based approaches. Additive manufacturing technology utilized fabricate prototypes, validated via simulations experiments. Furthermore, demonstrated that activated through electrical heating function actuators, thereby possessing machine-like properties. metamaterial methodology potentials impact micro-electromechanical systems, sensors, protective devices, other

Язык: Английский

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In-memory mechanical computing

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Авг. 25, 2023

Mechanical computing requires matter to adapt behavior according retained knowledge, often through integrated sensing, actuation, and control of deformation. However, inefficient access mechanical memory signal propagation limit modules. To overcome this, we developed an in-memory architecture where occurs within the interaction network units. Interactions embedded data read-write interfaces provided function-complete neuromorphic while reducing traffic simplifying exchange. A reprogrammable binary neural a self-learning perceptron were demonstrated experimentally in 3D printed computers, as all 16 logic gates truth-table entries that are possible with two inputs one output. The enables design fabrication intelligent systems.

Язык: Английский

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Engineering Kirigami Frameworks Toward Real‐World Applications

Advanced Materials, Год журнала: 2023, Номер 36(9)

Опубликована: Ноя. 21, 2023

The surge in advanced manufacturing techniques has led to a paradigm shift the realm of material design from developing completely new chemistry tailoring geometry within existing materials. Kirigami, evolved traditional cultural and artistic craft cutting folding, emerged as powerful framework that endows simple 2D sheets with unique mechanical, thermal, optical, acoustic properties, well shape-shifting capabilities. Given its flexibility, versatility, ease fabrication, there are significant efforts kirigami algorithms create various architectured materials for wide range applications. This review summarizes fundamental mechanisms govern transformation structures elucidates how these contribute their distinctive including high stretchability adaptability, tunable surface topography, programmable shape morphing, characteristics bistability multistability. It then highlights several promising applications enabled by designs concludes an outlook on future challenges perspectives kirigami-inspired metamaterials toward real-world

Язык: Английский

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Delocalized Deformation Enhanced Reusable Energy Absorption Metamaterials Based on Bistable Tensegrity

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 22, 2024

Abstract Mechanical metamaterials are rationally designed structures possessing exceptional properties that can be manufactured by 3D printing techniques. provide an unprecedented platform for energy absorption, mitigating damage caused severe localized impacts within confined areas. However, current designs always reveal deficiencies either in their absorption capacities or suitability repetitive utilization. To address such limits, a novel bistable tensegrity structure with superior reusability is derived from classical structure, and tensegrity‐based assembly strategy proposed to construct these into mechanical delocalized deformation mechanism. Upon impact on single loading node, all the elastic components of each reusable stretch synchronously exhibiting higher energy‐absorbing capacity. Here, achieve capacity 26.4 kJ (kg m 2 ) −1 over 10 000 cycles, outperforming other materials ≈2 orders magnitude reusability, respectively. This study provides design developing high‐capacity, suitable advanced protection engineering systems.

Язык: Английский

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Snap‐through instability in mechanical metamaterials

Deleted Journal, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Abstract Snap‐through instability, a rapid transition between equilibrium states, has emerged as crucial mechanism for designing mechanical metamaterials with novel functionalities, including fast motion, energy modulation, and bistable deformation. Metamaterials snap‐through known snapping metamaterials, have enabled diverse applications, such robotics, sensing, absorption, shape reconfiguration, intelligence. Given the importance of these advancements, comprehensive review this field is highly desired. This paper provides an overview recent research on focusing their design strategies applications. Here, we summarized in several respects, beam‐based structures, shell‐based origami/kirigami designs, according to basic elements, alongside brief discussion unique deformation mechanisms. Furthermore, potential applications are presented terms energy, To conclude, perspectives challenges opportunities emerging highlighted, offering insights into future development metamaterials.

Язык: Английский

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Bi-material sinusoidal beam-based temperature responsive multistable metamaterials

International Journal of Solids and Structures, Год журнала: 2023, Номер 277-278, С. 112343 - 112343

Опубликована: Май 26, 2023

Язык: Английский

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Bio-inspired facile strategy for programmable osmosis-driven shape-morphing elastomer composite structures

Materials Horizons, Год журнала: 2024, Номер 11(9), С. 2180 - 2190

Опубликована: Янв. 1, 2024

Achieving programmable and reversible deformations of soft materials is a long-standing goal for various applications in robotics, flexible electronics many other fields. Swelling-induced shape morphing has been intensively studied as one the potential mechanisms. However, achieving an extremely large swelling ratio (>1000% volume) remains challenging with existing swellable (e.g., hydrogels water-swellable rubbers). Inspired by change enabled osmosis-driven living organisms, herein, we report polymer composite system composed fine sodium chloride (NaCl) particles embedded Ecoflex00-10 polymer. This Ecoflex00-10/NaCl can achieve controllable volumetric up to 3000% while maintaining relatively high elastic stiffness. We demonstrate that this serve active component drive structures. By controlling geometric design fraction NaCl particle, structures capable deforming sequentially are created. Finally, encapsulating 3D printed patterns using water-permeable PDMS membrane, braille visual tactile regulation demonstrated purpose information encryption. Our study provides facile approach generate customizable shape-morphing structures, aiming broaden range techniques devices.

Язык: Английский

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Programmable responsive metamaterials for mechanical computing and robotics

Nature Computational Science, Год журнала: 2024, Номер 4(8), С. 567 - 573

Опубликована: Авг. 27, 2024

Язык: Английский

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