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Article
Chemistry, Multidisciplinary
Aiwu Zhou et al.
Summary: By utilizing a circulating vat photopolymerization platform, magnetic soft millirobots (MSMRs) with high magnetic response can be 3D printed with high accuracy, showcasing their reversible 3D-to-3D transformation and liquid droplet manipulation capabilities, broadening their application in in vitro diagnostics.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Mengmeng Sun et al.
Summary: This study proposes a non-Newtonian fluid-based magnetically actuated slime robot with both the adaptability of elastomer-based robots and reconfigurable significant deformation capabilities of fluid-based robots, enabling operations in complex environments and various functionalities.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Puchuan Tan et al.
Summary: In this study, a gesture recognition wristband that allows for full keyboard and multicommand input is developed. The wristband is convenient to wear, low in cost, and does not interfere with other hand movements. With the use of physiological anatomy, active sensor, and machine learning technology, the wristband achieves a high accuracy rate in recognizing 26 letters.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Wei-Ming Zhang et al.
Summary: This study designed and characterized a novel two-dimensional lightweight rotationally arranged auxetic structure, and systematically investigated its elastic properties, plastic collapse stress, and specific energy absorption through theoretical calculations, numerical simulations, and experimental methods. The results showed that the structure has excellent energy absorption capacity and extreme conditions, allowing for optimization according to different requirements.
MECHANICS OF MATERIALS
(2022)
Article
Multidisciplinary Sciences
Amin Farzaneh et al.
Summary: This study introduces periodic and graded metamaterials that passively achieve sequential deformations with user-specified alternating Poisson's ratios. An analytical approach and software tool are provided for designing these materials in two- and three-dimensions. Experiments validate the accuracy of the design in producing alternating Poisson's ratios.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Mingxin Wu et al.
Summary: This study presents a soft gripper inspired by the grasping capability of the glowing sucker octopus. The gripper utilizes a 3D-printed linkage mechanism to deform a silicone-casting soft suction disc, which generates suction to lift objects. The gripper's protruded funnel-shaped end adapts to different surfaces and can detect tactile perception signals instead of relying on visual perception in a turbid environment. The versatility of the gripper is demonstrated by successfully grasping objects of different shapes and sizes, including a moving turtle. This research highlights the potential applications of self-adaptive grasping and sensing, particularly in underwater environments.
Article
Multidisciplinary Sciences
Qiji Ze et al.
Summary: Researchers have developed a magnetically actuated small-scale origami crawler with inplane contraction, which can crawl and steer in confined spaces. This crawler has magnetically tunable structural stiffness, allowing it to overcome large resistances, and it has the ability to store and release drugs internally, demonstrating its multifunctionality.
Article
Robotics
Feifei Chen et al.
Summary: In this letter, a new class of soft pneumatic linear actuators with single-material, uniaxial deformation, high energy density, and scalability is proposed. The actuators are based on periodic curved air channels and the shape of the channels is controlled by modified triply periodic minimal surfaces (mTPMS). The period ratio of mTPMS is identified as a key design variable that allows the actuator to deliver linear, areal, and volumetric actuation modes. A finite element model is developed to predict the actuator's deformation behavior and optimize its design. The actuators are 3D printed and exhibit linear motions up to nominal strain of 48.6%, blocking force of 45.9 N, and energy density of 1.25 kJ/m3. This letter represents an important step towards the development of materials as machines for applications across different scales.
IEEE ROBOTICS AND AUTOMATION LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Xuan Zhang et al.
Summary: This article presents a method to add computational capabilities to small-scale soft grippers through environmentally responsive logic gates, enabling intelligent control and logical analysis. Various logic gates inspired by origami were developed using stimuli-responsive hydrogels, and they can be easily integrated within grippers. The grippers fabricated by dual-responsive hydrogels can switch between different logic gates based on environmental stimuli. Additionally, a magnetic gripper with an AND gate was fabricated, which can analyze different stimuli and manipulate objects using the environmentally responsive logic gates.
MATERIALS HORIZONS
(2022)
Article
Automation & Control Systems
Bonan Sun et al.
Summary: Magnetic soft millirobots with joint structures developed by 3D printing hydrogels can achieve larger motions and reduce energy consumption by converting bending deformation into folding deformation through local deformation. These robots are capable of performing multimodal locomotion and programmed shape transformation, with potential surgical applications demonstrated in ex vivo experiments.
ADVANCED INTELLIGENT SYSTEMS
(2022)
Article
Materials Science, Multidisciplinary
Yun-Long Chen et al.
Summary: The vibration and damping performances of carbon fiber-reinforced polymer (CFRP) 3D DAH auxetic metamaterials are investigated, showing that the effects of different inclined corrugated angles and fiber orientations have significant influences on the material properties.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Ying Gao et al.
Summary: This paper introduces a new concept of 3D auxetic lattice structures with high stiffness and explores a method for rapidly fabricating them. Theoretical models are developed to predict the homogenized elastic properties of the structures, and the directional dependence of these properties is investigated in detail. Experimental and numerical analysis confirm that the structures are suitable for uniaxial loading and exhibit excellent load bearing capacity and negative Poisson's ratio effects. Efforts to promote the wider use of these structures in various applications are emphasized.
MECHANICS OF MATERIALS
(2021)
Article
Engineering, Mechanical
Jianjun Zhang et al.
Summary: Sandwich structures with origami cores have potential for engineering applications, but few studies have focused on their ballistic performance. This study manufactured metallic sandwich panels with aluminium origami cores and conducted tests to explore their plastic deformation and ballistic resistance. Finite element simulations were used to compare the performance of sandwich panels with origami cores and honeycomb cores, with parametric studies examining the effect of core characteristics on ballistic performance.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Xiaoyang Zheng et al.
Summary: This study introduces a new 3D auxetic metamaterial generated from an implicit expression, fabricated using 3D printing, and enhanced with a nickel layer for improved performance. Evaluation of the metamaterial's performance through compression tests and finite element analyses, along with contour maps for guidance in functional applications, were presented. Integration of 3D printing and electroless plating allowed accurate control over the mechanical and conduction properties of the material.
MATERIALS & DESIGN
(2021)
Article
Engineering, Mechanical
Zhiwen Ren et al.
Summary: This work proposes a method of creating geometrically reconfigurable and mechanically tunable multi-stable metamaterials to realize a kind of tunable elastic metamaterial with a stable state during the active regulation without continuous-consuming energy based on 4D printing technology. The tunable elastic metamaterial can adjust the starting/ending frequencies, broaden the frequency ranges of bandgaps and control the elastic wave propagation. The method can be used in vibration-isolated steady-state adjustable equipment and smart wave device, and a bi-stable logic-gate elastic metamaterial is implemented to correctly execute simple wave logic operations.
EXTREME MECHANICS LETTERS
(2021)
Article
Engineering, Mechanical
Gaojian Lin et al.
Summary: Three-dimensional chiral mechanical metamaterials exhibit a unique compression-twisting coupling effect, which can lead to global buckling under external compressive load exceeding a critical value. A novel constitutive model and homogenization method were developed to describe and quantify the size dependency of chirality in these materials. The study revealed the effects of chirality on buckling strength and mode.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Engineering, Civil
Haiyang Yang et al.
Summary: The study demonstrates the potential of CFRP and GFRP in designing lightweight thin-walled energy absorbers. GFRP tubes outperformed CFRP in low-velocity impact tests, while GFRP tubes filled with OS-skeleton showed superior energy absorption characteristics.
THIN-WALLED STRUCTURES
(2021)
Article
Multidisciplinary Sciences
Charles El Helou et al.
Summary: The study introduces a method of leveraging conductive polymer-based mechanical metamaterials to realize various digital logic gates and gate assemblies, providing an important approach for decision-making in soft, conductive materials.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Civil
Ngoc San Ha et al.
Summary: This study proposes novel bio-inspired fractal multi-cell circular (BFMC) tubes for energy absorption, showing higher specific energy absorption compared to conventional tubes. Optimization using the COPRAS method revealed that structures with four tree-like branches and 2nd-order fractal performed the best. The theoretical results of mean crushing force (MCF) matched well with numerical results, providing an effective guide for designing high-energy absorption efficiency multi-cell absorbers using biomimetic approach.
THIN-WALLED STRUCTURES
(2021)
Article
Multidisciplinary Sciences
Tie Mei et al.
Summary: The reprogrammable mechanological metamaterial (ReMM) proposed in this study achieves logical computing through sequential excitations, allowing for selective imposition and release of excitations during initialization and reprogramming. Experimental results demonstrate the realization of universal combinatorial logic and sequential logic, while also discussing the fabrication scalability of the system.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Mechanical
Zhiqiang Meng et al.
Summary: This research presents a design of mechanical logic gates based on kirigami and origami, successfully demonstrating the experimental validation of AND, OR, and NOT gates. By combining the logic gates together, it provides a possible solution for more complex logic operations.
EXTREME MECHANICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jiahao Shi et al.
Summary: The development of a new 3D multistable shellular metamaterial by introducing delicate perforations on Schwarz's Primitive shellular surface has provided strong rigidity and enhanced energy dissipation. The introduction of multilayer staggered perforations forming hinges and expanding the perforation design in three orthogonal directions enables the creation of three-directional multistable shellular structures.
ADVANCED MATERIALS
(2021)
Article
Multidisciplinary Sciences
Shuai Wu et al.
Summary: Inspired by the embodied intelligence observed in octopus arms, magnetically controlled origami robotic arms based on Kresling patterns have been introduced for multimodal deformations, including stretching, folding, omnidirectional bending, and twisting. The highly integrated motion of the robotic arms is attributed to the reconfigurable Kresling unit, achieved through precise magnetic actuation. This technology enables the development of robotic arms that mimic the grasping and manipulation functions of octopus arms, with great potential for various applications.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Instruments & Instrumentation
Qingrui Wang et al.
Summary: This paper reports a bistable soft jumping robot with self-decision ability, which can change jumping modes in response to external stimuli and achieve continuous jumping under temperature stimulation.
SMART MATERIALS AND STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Xueyan Fu et al.
ADVANCED ENGINEERING MATERIALS
(2020)
Article
Multidisciplinary Sciences
Ruslan Guseinov et al.
NATURE COMMUNICATIONS
(2020)
Article
Chemistry, Physical
Viacheslav Slesarenko
Article
Mechanics
Hang Yang et al.
COMPOSITE STRUCTURES
(2020)
Review
Materials Science, Multidisciplinary
S. Macrae Montgomery et al.
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
(2020)
Article
Engineering, Civil
Meng-Fu Guo et al.
THIN-WALLED STRUCTURES
(2020)
Article
Engineering, Mechanical
U. Waheed et al.
EXTREME MECHANICS LETTERS
(2020)
Article
Multidisciplinary Sciences
Benjamin Jenett et al.
Article
Engineering, Multidisciplinary
Jianjun Zhang et al.
COMPOSITES PART B-ENGINEERING
(2020)
Article
Engineering, Multidisciplinary
Pan Qi et al.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2020)
Article
Engineering, Mechanical
Huan Wan et al.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2019)
Article
Multidisciplinary Sciences
Yuanping Song et al.
NATURE COMMUNICATIONS
(2019)
Article
Nanoscience & Nanotechnology
Jingda Tang et al.
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Multidisciplinary Sciences
Nan Yang et al.
SCIENTIFIC REPORTS
(2019)
Article
Materials Science, Composites
Xin-Tao Wang et al.
COMPOSITES SCIENCE AND TECHNOLOGY
(2018)
Article
Materials Science, Composites
Xin-Tao Wang et al.
JOURNAL OF COMPOSITE MATERIALS
(2018)
Article
Multidisciplinary Sciences
Soroush Kamrava et al.
SCIENTIFIC REPORTS
(2017)
Article
Materials Science, Multidisciplinary
Luigi Cabras et al.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2016)
Article
Materials Science, Multidisciplinary
Xin-Tao Wang et al.
MATERIALS & DESIGN
(2016)
Article
Physics, Multidisciplinary
H. Yasuda et al.
PHYSICAL REVIEW LETTERS
(2015)
