Results 111 to 120 of about 15,145,976 (243)

Dual‐Functionality, Bio‐Friendly Artificial Muscles for Actuation and Motion Sensing in Smart Wearable Systems

open access: yesSmall, EarlyView.
This work presents a biofriendly carbon nanotube yarn artificial muscle operating either as an in‐air unipolar actuator or as a self‐powered ionotronic strain sensor. Using a non‐volatile eutectogel‐derived electrolyte, the system achieves up to 2.9% contraction and 0.5 mV/% strain sensing sensitivity.
Gabriela Ananieva   +11 more
wiley   +1 more source

Auxetic materials – structures, potential application [PDF]

open access: yes, 2020
Dokonano przeglądu literatury pod kątem badań materiałów auksetycznych, które posiadają ujemny współczynnik Poisson’a (NPR) charakteryzujący odpowiedź materiału na naprężenie jednoosiowe.
Wyrębska, Łucja   +4 more
core  

Simulation and Analysis of Stiffened Auxetic Honeycombs Having Enhanced High Impact Velocity Response

open access: yesApplied Research, Volume 5, Issue 5, October 2026.
The ballistic resistance of auxetic re‐entrant honeycomb structures can be significantly improved through geometric tailoring and structural reinforcement. Vertical and horizontal stiffening ribs enhanced the ballistic performance, increasing the energy absorption efficiency by 119.45% and the projectile velocity reduction by 281.36%, ultimately ...
Samy M. Lawaty   +3 more
wiley   +1 more source

Development and Characterization of Re-Entrant Auxetic Fibrous Structures for Application in Ballistic Composites [PDF]

open access: yes, 2018
Auxetic fibrous structures and composites with negative Poisson’s ratio (NPR) have huge potential for application in ballistic protection due to their high energy absorption and excellent impact resistance.
Gonçalves, Clara   +11 more
core   +1 more source

Monitoring Auxetic Structure with FBG Sensor

open access: yese-Journal of Nondestructive Testing
Auxetic materials are a particular class of materials which present a negative Poisson ratio (NPR). This means that once they are stretched, they expand in the directions orthogonal to the applied load. The dual behaviour occurs during compression tests.
Riccardo C. Moroni   +2 more
doaj   +1 more source

Exploring X2BH6 (X = Li, Na, and K) Double Perovskite Hydrides for Solid‐State Hydrogen Storage Applications

open access: yesAdvanced Theory and Simulations, Volume 9, Issue 9, September 2026.
X2BH6 (X = Li, Na, and K) double perovskite hydrides are investigated using Density Functional Theory (DFT). Highest gravimetric hydrogen storage capacity is found as 19.71 wt % for Li2BH6 and the suitable desorption temperature is found as 308.00 K for K2BH6.
Aysenur Gencer   +3 more
wiley   +1 more source

Auxetic structures in civil engineering applications: Experimental (by 3D printing) and numerical investigation of mechanical behavior

open access: yesResults in Materials
Auxetic materials are a group of metamaterials that have a negative Poisson's ratio. The most important advantage of auxetics over conventional materials is higher energy absorption. Consequently, in Civil Engineering, a wide range of applications may be
Omid Khaghani   +2 more
doaj   +1 more source

Auxetic Materials

open access: yes
This report examines auxetic materials which are designed to have a negative Poisson’s ratio. Thismeans they expand sideways when stretched. This unusual behaviour provides unique mechanicaladvantages, such as better resistance to indentation, improved toughness against fractures, andbeneficial synclastic curvature, which aids in uniform bending.
openaire   +2 more sources

Exploration of auxetics materials in sport

open access: yes, 2021
A special property of auxetic materials is their negative Poisson’s ratio : this material shortens or lengthen in all directions when subjected respectively to a compressive or tensile force. This unusual characteristic opens up new perspectives in many fields. Sport is one of the fields where these properties can be well exploited. Already studied and
Ghesquière-Diérickx, Thibault   +1 more
openaire   +1 more source

Piezo‐Coupling Effects in Smart Polymers: Toward Ultrasensitive Sensing and Biomedical Applications

open access: yesAdvanced Science, Volume 13, Issue 51, 14 September 2026.
Piezo‐coupling effects are the foundational factors for the development of multifunctional and self‐powered platforms. Central to this advancement is the use of stimuli‐responsive smart polymers, which offer mechanical flexibility, biocompatibility, and simplified structural complexity with improved sensitivity and energy efficiency.
Duc Khanh Tran   +6 more
wiley   +1 more source

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