Reprogrammable Flexible Piezoelectric Actuator Arrays with a High Degree of Freedom for Shape Morphing and Locomotion DOI
Hong Ding,

Dengfei Yang,

Shuo Ding

et al.

Soft Robotics, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

The high degree of freedom (DoF) shape morphing widely exists in biology for mimicry, camouflage, and locomotion. Currently, a lot bionic soft/flexible actuators robots with shape-morphing functions have been developed to realize conformity, grasp, movement. Among these solutions, two-dimensional responsive materials structures that can morph into different three-dimensional configurations are valuable creating reversible DoF morphing. However, most existing methods predetermined through the fabrication process cannot reprogram their shape, facing limitations on multifunction. Besides, achievable geometries very limited due device's low integrated level actuator elements. Here, we develop polyvinylidene fluoride flexible piezoelectric array based row/column addressing (RCA) scheme reprogrammable specially designed electrodes form 6 × array, which contains 36 By developing high-voltage RCA control system, individually all elements leading highly various sophisticated We also demonstrate is capable propelling robotic fish locomotions. This research provides new method approach biomimetic robotics better aero/hydrodynamic efficiency, maneuverability, as well haptic display object manipulation.

Language: Английский

Mechanical metamaterials and beyond DOI Creative Commons
Pengcheng Jiao, J. Howard Mueller, Jordan R. Raney

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Sept. 26, 2023

Mechanical metamaterials enable the creation of structural materials with unprecedented mechanical properties. However, thus far, research on has focused passive and tunability their Deep integration multifunctionality, sensing, electrical actuation, information processing, advancing data-driven designs are grand challenges in community that could lead to truly intelligent metamaterials. In this perspective, we provide an overview within beyond classical functionalities. We discuss various aspects approaches for inverse design optimization multifunctional Our aim is new roadmaps discovery next-generation active responsive can interact surrounding environment adapt conditions while inheriting all outstanding features Next, deliberate emerging specific functionalities informative scientific devices. highlight open ahead metamaterial systems at component levels transition into domain application capabilities.

Language: Английский

Citations

236
Advances in 3D/4D printing of mechanical metamaterials: From manufacturing to applications DOI
Xueli Zhou, Luquan Ren, Zhengyi Song

et al.

Composites Part B Engineering, Journal Year: 2023, Volume and Issue: 254, P. 110585 - 110585

Published: Feb. 4, 2023

Language: Английский

Citations

162
Recent Progress in Active Mechanical Metamaterials and Construction Principles DOI

Qi Jixiang,

Zihao Chen,

Peng Jiang

et al.

Advanced Science, Journal Year: 2021, Volume and Issue: 9(1)

Published: Oct. 29, 2021

Abstract Active mechanical metamaterials (AMMs) (or smart metamaterials) that combine the configurations of and active control stimuli‐responsive materials have been widely investigated in recent decades. The elaborate artificial microstructures stimulus response characteristics both contribute to AMMs, making them achieve excellent properties beyond conventional metamaterials. micro macro structures AMMs are designed based on structural construction principles such as, phase transition, strain mismatch, instability. Considering controllability efficiency materials, physical fields temperature, chemicals, light, electric current, magnetic field, pressure adopted as external stimuli practice. In this paper, frontier works latest progress from aspects mechanics reviewed. functions engineering applications also discussed. Finally, existing issues future perspectives field briefly described. This review is expected provide basis inspiration for follow‐up research AMMs.

Language: Английский

Citations

142
Advances in 4D printing of liquid crystalline elastomers: materials, techniques, and applications DOI Open Access
Zhecun Guan, Ling Wang, Jinhye Bae

et al.

Materials Horizons, Journal Year: 2022, Volume and Issue: 9(7), P. 1825 - 1849

Published: Jan. 1, 2022

We review recent advances in 4D printing of LCEs, with emphasis on synthesis and processing methods that enable microscopic changes the molecular orientation hence macroscopic properties printed objects.

Language: Английский

Citations

106
Multiscale stress deconcentration amplifies fatigue resistance of rubber DOI
Jason Steck, Junsoo Kim, Yakov Kutsovsky

et al.

Nature, Journal Year: 2023, Volume and Issue: 624(7991), P. 303 - 308

Published: Dec. 13, 2023

Language: Английский

Citations

75
Active Materials for Functional Origami DOI
Sophie Leanza, Shuai Wu, Xiaohao Sun

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(9)

Published: April 30, 2023

Abstract In recent decades, origami has been explored to aid in the design of engineering structures. These structures span multiple scales and have demonstrated be used toward various areas such as aerospace, metamaterial, biomedical, robotics, architectural applications. Conventionally, or deployable actuated by hands, motors, pneumatic actuators, which can result heavy bulky On other hand, active materials, reconfigure response external stimulus, eliminate need for mechanical loads actuation systems. Thus, years, materials incorporated with shown promise remote light weight, programmable origami. this review, shape memory polymers (SMPs) alloys (SMAs), hydrogels, liquid crystal elastomers (LCEs), magnetic soft (MSMs), covalent adaptable network (CAN) polymers, their mechanisms, well how they utilized where these are applicable is discussed. Additionally, state‐of‐the‐art fabrication methods construct highlighted. The existing structural modeling strategies origami, constitutive models describe largest challenges future directions research summarized.

Language: Английский

Citations

71
Kirigami‐Inspired Biodesign for Applications in Healthcare DOI Creative Commons
Anne Katherine Brooks, Sudesna Chakravarty,

Maryam Ali

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(18)

Published: Jan. 24, 2022

Abstract Mechanically flexible and conformable materials integrated devices have found diverse applications in personalized healthcare as diagnostics therapeutics, tissue engineering regenerative medicine constructs, surgical tools, secure systems, assistive technologies. In order to impart optimal mechanical properties the (bio)materials used these applications, various strategies been explored—from composites structural engineering. recent years, geometric cuts inspired by art of paper‐cutting, referred kirigami, provided innovative opportunities for conferring precise via material removal. Kirigami‐based approaches device design areas ranging from soft bioelectronics energy storage. this review, principles kirigami‐inspired specifically biomedical are discussed. Factors pertinent their design, including cut geometry, materials, fabrication, effect parameters on configurations covered. Examples kirigami designs presented, such as, form factors sensors (on skin, wearable), implantable devices, procedures, cellular scaffolds medicine. Finally, challenges future scope successful translation biodesign concepts broader deployment

Language: Английский

Citations

70
Hydrogel muscles powering reconfigurable micro-metastructures with wide-spectrum programmability DOI Creative Commons
Mingchao Zhang, Aniket Pal, Zhiqiang Zheng

et al.

Nature Materials, Journal Year: 2023, Volume and Issue: 22(10), P. 1243 - 1252

Published: Aug. 21, 2023

Stimuli-responsive geometric transformations endow metamaterials with dynamic properties and functionalities. However, using existing transformation mechanisms to program a single geometry transform into diverse final configurations remains challenging, imposing crucial design restrictions on achieving versatile Here, we present programmable strategy for wide-spectrum reconfigurable micro-metastructures linearly responsive transparent hydrogels as artificial muscles. Actuated by the hydrogel, of arises from collaborative buckling their building blocks. Rationally designing three-dimensional printing parameters features metastructures enables locally isotropic or anisotropic deformation, allowing controllable pattern chirality optical anisotropy. This reconfiguration mechanism can be applied various materials wide range mechanical properties. Our thermally printed metalattice pixel-by-pixel mapping different powers angles displaying hiding complex information, providing opportunities encryption, miniature robotics, photonics phononics applications.

Language: Английский

Citations

69
Shape Morphing of 3D Printed Liquid Crystal Elastomer Structures with Precuts DOI
Liqian Wang,

Zhuxuan Wei,

Zengting Xu

et al.

ACS Applied Polymer Materials, Journal Year: 2023, Volume and Issue: 5(9), P. 7477 - 7484

Published: Aug. 10, 2023

Liquid crystal elastomer (LCE) is a typical thermally responsive soft material, which an ideal candidate for fabricating programmable shape changing structures. The anisotropic changes of LCEs caused by the mesogen reorientation are inherently different from those other stimulus-responsive materials, such as hydrogels and dielectric elastomers. In this paper, we first investigate bending behaviors bilayer with monodomain active layer polydomain passive layer. It shown that folding can be obtained aspect ratio. We further propose strategy to achieve complex activated LCE deformations through introducing precuts into printed structures, change degrees freedom morphing our design beyond ability based on materials. Our method provide far-reaching possibilities devices 3D actuators various functionalities.

Language: Английский

Citations

43
Liquid Crystal Elastomers for Actuation: A Perspective on Structure-Property-Function Relation DOI Creative Commons
Zhi‐Chao Jiang, Qing Liu, Yao‐Yu Xiao

et al.

Progress in Polymer Science, Journal Year: 2024, Volume and Issue: 153, P. 101829 - 101829

Published: May 10, 2024

Liquid crystal elastomers (LCEs) have long held significant promise as materials for artificial muscles and smart actuators. Recent advancements in this field introduced innovative LCE structures at various scales, resulting novel properties functionalities that further accentuate their actuation advantages, bolstering potential future soft systems. The ongoing pursuit of enhanced performance functionality actuators, essential advancing them towards superior material-based machines devices, is intricately linked to the understanding fundamental structure-property-function relationships. This review provides a perspective on these relationships across multiple structural levels, encompassing chemical structures, mesophase micro-to-macroscale programmed structures. It delves into impact key actuation-related properties, features, functionalities. aspires provide valuable insights design high-performance development exceptional modes behaviors, expansion achievable functionality.

Language: Английский

Citations

22