Results 11 to 20 of about 47,467 (286)

Numerical predictions for the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surface-based composites

open access: yesResults in Materials, 2022
This study investigates the effect of negative Poisson's ratio on thermoelastic properties of triply periodic minimal surfaces (TPMS)-based composites.
Komal Chawla, Raj Kiran
doaj   +1 more source

Analysis of Sound Absorption Performance of Underwater Acoustic Coating considering Different Poisson’s Ratio Values

open access: yesShock and Vibration, 2021
Viscoelastic material acoustic coating plays an important role in noise and vibration control of underwater equipment. The dynamic mechanical properties of the viscoelastic material have a direct effect on the sound absorption performance of the acoustic
Zhuhui Luo   +3 more
doaj   +1 more source

Design exploration of additively manufactured chiral auxetic structure using explainable machine learning

open access: yesMaterials & Design, 2023
A design exploration of hexachiral structures using explainable machine learning (ML) is performed in this work. The hexachiral structures are fabricated using resin via vat photopolymerization (VPP).
Afdhal   +4 more
doaj   +1 more source

Design and Microscale Fabrication of Negative Poisson’s Ratio Lattice Structure Based on Multi-Scale Topology Optimization

open access: yesMachines, 2023
The current design of negative Poisson’s ratio lattice structures is mainly forward-looking and predominantly dependent on several known deformation patterns.
Ran An, Xueyuan Ge, Miaohui Wang
doaj   +1 more source

TiNi Alloy Lattice Structures with Negative Poisson’s Ratio: Computer Simulation and Experimental Results

open access: yesMetals, 2022
One of the issues that modern implants face is their high stiffness, coupled with a positive Poisson’s ratio along the implant. This creates certain problems with bone inflammation and implant detachment.
Eduard Farber   +6 more
doaj   +1 more source

Sequential metamaterials with alternating Poisson’s ratios [PDF]

open access: yesNature Communications, 2022
AbstractMechanical metamaterials have been designed to achieve custom Poisson’s ratios via the deformation of their microarchitecture. These designs, however, have yet to achieve the capability of exhibiting Poisson’s ratios that alternate by design both temporally and spatially according to deformation.
Amin Farzaneh   +3 more
openaire   +5 more sources

Rutile-mimic 3D metamaterials with simultaneously negative Poisson's ratio and negative compressibility

open access: yesMaterials & Design, 2021
The origin of negative Poisson's ratio in rutile-type oxides and fluorides is explored through density functional theory (DFT) simulation. The study highlights the dominant role of nearest-neighbor central force interactions, thereby inspiring the design
Y. Yao, Y. Ni, L.H. He
doaj   +1 more source

Poisson’s ratio of individual metal nanowires [PDF]

open access: yesNature Communications, 2014
AbstractThe measurement of Poisson’s ratio of nanomaterials is extremely challenging. Here we report a lateral atomic force microscope experimental method to electromechanically measure the Poisson’s ratio and gauge factor of individual nanowires. Under elastic loading conditions we monitor the four-point resistance of individual metallic nanowires as ...
McCarthy, EK   +3 more
openaire   +4 more sources

Negative Poisson’s ratios in metal nanoplates [PDF]

open access: yesNature Communications, 2014
The Poisson's ratio is a fundamental measure of the elastic-deformation behaviour of materials. Although negative Poisson's ratios are theoretically possible, they were believed to be rare in nature. In particular, while some studies have focused on finding or producing materials with a negative Poisson's ratio in bulk form, there has been no such ...
Ho, Duc Tam   +4 more
openaire   +4 more sources

Nanocellulose/PEGDA Aerogels with Tunable Poisson’s Ratio Fabricated by Stereolithography for Mouse Bone Marrow Mesenchymal Stem Cell Culture

open access: yesNanomaterials, 2021
In this study, nanocellulose aerogels with a tunable Poisson’s ratio were fabricated. Tissue engineering scaffolds with a tunable Poisson’s ratio may be better able to simulate the mechanical behavior of natural tissues. A mixture of cellulose nanofibers
Aimin Tang   +6 more
doaj   +1 more source

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