Results 131 to 140 of about 6,969 (230)

Impact absorption in auxetic damageable materials

, 2021
In this work we study the behaviour of elastic and quasi-brittle auxetic metamaterial under impact. Particular reference is made to the use of these structured materials for facial protector devices for sport activities. Impact analyses of a ball over an auxetic and a non- auxetic honeycomb material show the potential benefit of the densification ...
D. Faraci, C. Comi
openaire   +1 more source

Embedding auxetic structures in composite substrate layer for enhancing performance of stretchable strain sensors

Materials & Design
The mechanical coupling between the sensing and substrate layers is critical for stretchable strain-sensing devices in wearable electronics. This study proposes a facile composite substrate design by embedding auxetic structures directly into a ...
Jun Ren, Meng Zhang, Jia-Wen Xu, Heng-Yong Nie, Yu Liu   +4 more
doaj   +1 more source

Bayesian-driven modulation of recoverable strain in compliant auxetic cementitious composites for optimal energy harvesters

Materials & Design
Auxetic cementitious cellular composites (ACCCs) offer high deformability that is attractive for mechanical energy harvesting when integrated with flexible piezoelectric materials.
Jinbao Xie, Yading Xu, Zhaozheng Meng, Minfei Liang, Wen Zhou, Yubao Zhou, Chen Liu, Erik Schlangen, Branko Šavija   +8 more
doaj   +1 more source

Comparative Framework for Energy Absorption Capacity of Auxetics and Open‐Cell Foams

Macromolecular Materials and Engineering
The selection of the appropriate materials and structures for enhanced energy absorption is paramount in the design of protective gear, regardless of the final application.
George Youssef, Celia Rufo‐Martín
doaj   +1 more source

Shape‐Memory Alloy‐Based Auxetic Smart Metamaterials: Enabling Inherently Bidirectional Actuation

Advanced Intelligent Systems
Auxetic metamaterials, characterized by their negative Poisson's ratio, have garnered significant interest in various fields due to their unique mechanical properties.
Yeong Jae Park, Hyunje Ahn, Hugo Rodrigue   +2 more
doaj   +1 more source

A seamless auxetic substrate with a negative Poisson’s ratio of −1

Nature Communications
Auxetic metamaterials are a unique class of materials or structures with a negative Poisson’s ratio and a wide array of functionalities. However, their inherent porosity presents challenges in practical applications.
Yung Lee, Bongkyun Jang, Hyunggwi Song, Sumin Kim, Yong Won Kwon, Hyun Seok Kang, Min Seong Kim, Inkyu Park, Taek-Soo Kim, Junho Jang, Jae-Hyun Kim, Jang-Ung Park, Byeong-Soo Bae   +12 more
doaj   +1 more source

Influence of Nodal Spheres on the Mechanical Behaviour of Auxetic Materials Manufactured with PA12. [PDF]

Materials (Basel)
Lamas I, Feijoo I, Gómez S, Pereira A, Pérez JA, Pérez MC.   +5 more
europepmc   +1 more source

Effects of Build Orientation and Loading Direction on the Compressive Behavior of Additively Manufactured Re-Entrant Auxetic Materials. [PDF]

Polymers (Basel)
Ermurat M, Dag MS.
europepmc   +1 more source

Seismic Isolation Performance of Seismic Metamaterials Based on Embedded Dual-Resonator Coupled Auxetic Materials. [PDF]

Materials (Basel)
Zhang L, Meng Y, Cheng S, Zhang S, Xin Y, Sun Y, Zhao Q.   +6 more
europepmc   +1 more source

Reduced stress propagation leads to increased mechanical failure resistance in auxetic materials. [PDF]

Proc Natl Acad Sci U S A
Fielding SM.
europepmc   +1 more source