Results 101 to 110 of about 15,145,976 (243)

Triboelectric nanogenerators for vehicle intelligent cockpits

FlexMat, EarlyView.
Converting mechanical stimuli from drivers and vehicle motion into electrical signals, triboelectric nanogenerators provide promising interfaces toward passive, flexible, distributed and intelligent sensing for next‐generation automotive cockpits to support three core functional dimensions: driver state monitoring, vehicle state monitoring, and human ...
Haiqiu Tan, Shiquan Lü, Xiangwei Meng, Huiying Zhang, Wenxing Zhang, Dongxian Sun, Xiao Lu, Lei Wang, Haodong Zhang, William W. Yu   +9 more
wiley   +1 more source

An autonomous design algorithm to experimentally realize three-dimensionally isotropic auxetic network structures without compromising density

npj Computational Materials
Auxetic materials have a negative Poisson’s ratio and are of significant interest in applications that include impact mitigation, membrane separations and biomedical engineering.
Meng Shen, Marcos A. Reyes-Martinez, Louise Ahure Powell, Mark A. Iadicola, Abhishek Sharma, Fabian Byléhn, Nidhi Pashine, Edwin P. Chan, Christopher L. Soles, Heinrich M. Jaeger, Juan J. de Pablo   +10 more
doaj   +1 more source

Constitutive memory equations for auxetic materials

Mathematical Modelling and Analysis
In this note we suggest a set of constitutive equations for anelastic materials whose internal structure can present anomalous variations resulting from external effects of tension/compression, as in auxetic media. For these problems we require of a new function related with the variation of internal structure, which allows us to define a threshold ...
Michele Caputo, Vittorio Ruggiero
openaire   +3 more sources

Homogenization of periodic auxetic materials

Procedia Engineering, 2011
AbstractMaterialspresentinganegativePoisson'sratio(auxetics)havedrawnattentionforthepasttwodecades,especiallyinthefieldoflightweightcompositestructuresandcellularmaterials.Studieshaveshownthatauxeticitymayresultinhighershearmodulus,fracturetoughnessandacousticdamping.Inthiswork,threeauxeticperiodiclatticesareconsidered ...
Dirrenberger, J., Forest, S., Jeulin, D., Colin, C.   +3 more
openaire   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

FlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu, Taisong Pan, Siqi Chen, Yiting Zhang, Yuan Lin   +4 more
wiley   +1 more source

GAM: General Auxetic Metamaterial with Tunable 3D Auxetic Behavior Using the Same Unit Cell Boundary Connectivity

, 2023
Research on auxetic metamaterials is important due to their high performance against impact loadings and their usefulness in actuators, among other applications. These metamaterials offer a negative Poisson’s ratio at the macro level.
Francisco J. San Millán, Francisco Javier Montáns, Luis Saucedo-Mora, Ismael Ben-Yelun, Miguel Ángel Sanz, Guillermo Gómez-Carano   +5 more
core   +1 more source

Impact and Compressive Performance of 3D‐Printed PA6/Functionalized Graphene Nanoplatelet Sandwich Structures With Auxetic Cores

Polymer Composites, EarlyView.
Schematic of PA6/functionalized graphene nanoplatelet compounding and filament extrusion to 3D printing, sandwich panel fabrication, and mechanical characterization. ABSTRACT This study examines the impact and compressive behavior of additively manufactured polyamide 6 (PA6) nanocomposite sandwich panels reinforced with amine‐functionalized graphene ...
Russo Swart, Karim El‐Ghamrawy, Richard Johnston, Feras Korkees   +3 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  

Enhancing indentation and impact resistance in auxetic composite materials

, 2020
Auxetic materials exhibiting a negative Poisson's ratio are of great research interest due to their unusual mechanical responses and a wide range of potential deployment.
Tian-Tian Li, Fan Liu, Lifeng Wang
semanticscholar   +1 more source

Influence of porosity and architecture on the mechanical and acoustic properties of FFF‐printed PLA structures

Polymer International, EarlyView.
The influence of porosity and infill pattern (architecture) on the mechanical and acoustic properties of FFF‐printed PLA is investigated. Ultrasonic analysis highlights the dominant role of interlayer porosity, revealing anisotropic behavior and a transition in elastic properties with increasing porosity.
Makki Ajmi, Simon Bernard, Slim Souissi, Ahmed Elloumi, Pierre Maréchal   +4 more
wiley   +1 more source