Results 71 to 80 of about 6,842,833 (174)

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

Advanced Science, EarlyView.
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, Tuan Sang Tran, Thanh‐An Truong, Trung‐Hieu Vu, That Buu Ton, Dzung Viet Dao, Van Thanh Dau   +6 more
wiley   +1 more source

Sensors Based on Auxetic Materials and Structures: A Review

Materials, 2023
Auxetic materials exhibit a negative Poisson’s ratio under tension or compression, and such counter-intuitive behavior leads to enhanced mechanical properties such as shear resistance, impact resistance, and shape adaptability. Auxetic materials with these excellent properties show great potential applications in personal protection, medical health ...
Shanshan Dong, Hong Hu
openaire   +2 more sources

Programmable Sequential 4D Actuation in Multistable Kirigami Metamaterials

Advanced Science, EarlyView.
This study presents a modular kirigami metamaterial framework enabling programmable multistability and sequential 4D actuation. By coupling geometry‐controlled multistability with material‐dependent recovery kinetics, spatiotemporal deformation can be precisely programmed.
Eui‐Hyun Kim, Minsung Kim, Hyunsik Yoon, Keun Park   +3 more
wiley   +1 more source

Dynamic performance of auxetic structures: experiments and simulation

Smart Materials and Structures, 2020
Abstract In this study, the in-plane mechanical properties of auxetic structures subjected to dynamic compression have been investigated experimentally and numerically. The studied auxetic structures, which have negative Poisson’s ratios, include a recently developed auxetic structure named re-entrant chiral ...
Alomarah, Amer, Xu, Shanqing, Masood, Syed, Ruan, Dong   +3 more
openaire   +2 more sources

Buckling Analysis of the Composite Sandwich Cylindrical Shell Integrated with Auxetic Metamaterial Core [PDF]

AUT Journal of Mechanical Engineering
This study investigated the effect of an auxetic structure, positioned as the central layer in a three-layered cylindrical shell, on its buckling behavior. The material for all three layers is aluminum. The covers are assumed isotropic.
Korosh Khorshidi, Saboor Savvafi, Sadegh Zobeid   +2 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

Monitoring Auxetic Structure with FBG Sensor

e-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.
Moroni, Riccardo Carlo, Andrearczyk, Artur, Majewska, Katarzyna   +2 more
openaire   +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

Accelerating Musculoskeletal Robotics Through Parametric Design and 3D‐Printed Flexible Structures

Advanced Intelligent Systems, EarlyView.
Parametric design and flexible 3D printing create muscle‐, tendon‐, ligament‐, and cushion‐like robotic elements from a single thermoplastic polyurethane material. Tuning lattice patterns adjusts regional mechanical properties and enables coordinated multijoint motions in a life‐sized musculoskeletal leg under external suspension, with partial body ...
Shunnosuke Yoshimura, Kento Kawaharazuka, Kei Okada   +2 more
wiley   +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