Results 41 to 50 of about 1,698 (186)

Bistable Networks Enable Complex Shape Changes

Advanced Science, EarlyView.
Transition‐controlled metamaterials are networks of bistable mechanical memory that store local binary states and express them as global shape change. By decoupling low‐force programming from high‐force holding, a single lattice is reconfigured into distinct 2D profiles and 3D surfaces without continuous actuation, enabling reusable morphing materials ...
Sawyer Thomas, Jeffrey Lipton
wiley   +1 more source

Review of Mechanics and Applications of Auxetic Structures

Advances in Materials Science and Engineering, 2014
One of the important mechanical properties of materials is Poisson’s ratio, which is positive for most of the materials. However, certain materials exhibit “auxetic” properties; that is, they have a negative Poisson’s ratio.
Mariam Mir, Murtaza Najabat Ali, Javaria Sami, Umar Ansari   +3 more
doaj   +1 more source

Harnessing distinct deformation modes of auxetic patterns for stiffness design of tubular structures

Materials & Design, 2021
Auxetic materials with a negative Poisson's ratio show a unique lateral expansion under tension while their deformation under shear is similar to that of normal materials.
Jeong Min Hur, Dong-Sik Seo, Kiyean Kim, Jun Kyu Lee, Kwang Je Lee, Yoon Young Kim, Do-Nyun Kim   +6 more
doaj   +1 more source

Explaining the Origin of Negative Poisson's Ratio in Amorphous Networks With Machine Learning

Advanced Intelligent Discovery, EarlyView.
This review summarizes how machine learning (ML) breaks the “vicious cycle” in designing auxetic amorphous networks. By transitioning from traditional “black‐box” optimization to an interpretable “AI‐Physics” closed‐loop paradigm, ML is shown to not only discover highly optimized structures—such as all‐convex polygon networks—but also unveil hidden ...
Shengyu Lu, Xiangying Shen
wiley   +1 more source

Auxetic Textiles

Acta Chimica Slovenica, 2014
Common materials have Poisson’s ratio values ranging from 0.0 to 0.5. Auxetic materials exhibit negative Poisson’s ratio. They expand laterally when stretched longitudinally and contract laterally when compressed.
Rant Darja, Rijavec Tatjana, Pavko-Čuden Alenka   +2 more
doaj  

Experimental Investigations on the Mechanical Performances of Auxetic Metal-Ceramic Hybrid Lattice under Quasi-Static Compression and Dynamic Ballistic Loading

Applied Sciences, 2023
In recent years, there have been increasing research interests in investigating the compression and ballistic responses of metal-ceramic hybrid structures, mainly making use of the synergistic effects of conventional metal honeycomb structures and ...
Rong Wang, Yongxiong Chen, Xiaonan Yan, Nan Cong, Delei Fang, Peipei Zhang, Xiubing Liang, Wenwang Wu   +7 more
doaj   +1 more source

Enhancing Sensitivity across Scales with Highly Sensitive Hall Effect‐Based Auxetic Tactile Sensors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Herein, a tactile sensor based on hall‐effect sensors with an auxetic structure, called Hall effect‐based auxetic tactile sensor (HEATS), is proposed. The change in magnetism resulting from the deformation of the auxetic structure is utilized for sensing.
Youngheon Yun, Dongchan Lee, Soyeon Lee, Salvador Pané, Josep Puigmartí‐Luis, Sungwoo Chun, Bumjin Jang   +6 more
wiley   +1 more source

FINITE ELEMENT APPROACH AND MATHEMATICAL FORMULATION OF VISCOELASTIC AUXETIC HONEYCOMB STRUCTURES FOR IMPACT MITIGATION [PDF]

Journal of Engineering Science and Technology, 2017
Auxetic structures are designed to be used for producing auxetic materials with controllable mechanical properties. The present study treats a design of viscoelastic auxetic honeycomb structures using numerical approach and mathematical formulation for ...
MOZAFAR SHOKRI RAD, SAEID MOHSENIZADEH, ZAINI AHMAD   +2 more
doaj  

Towards Advanced Intelligent and Perceptive Soft Grippers

Advanced Intelligent Systems, EarlyView.
Implementing soft yet strong and intelligent soft grippers request innovative and creative solutions in designing soft bodies and seamlessly integrating actuated systems with hierarchical sensing. This review systematically analyses soft grippers with a deep understanding of core components, from fundamental design principles to actuation and sensing ...
Haneul Kim, Hayeon Shin, Seik Park, Changbeom Shim, Seonggun Joe   +4 more
wiley   +1 more source

A review on artificial intelligence-enabled mechanical analysis of 3D printed and FEM-modelled auxetic metamaterials

Virtual and Physical Prototyping
Auxetic structures, characterised by a negative Poisson’s ratio, exhibit the unique property of expanding in all directions under tensile loading and contracting in all directions when compressed. The behaviour of these structures is highly influenced by
Aman Garg, Anshu Sharma, Weiguang Zheng, Li Li   +3 more
doaj   +1 more source