Results 11 to 20 of about 2,775,395 (241)

NEGATIVE POISSON’S RATIO AND PERCOLATING STRUCTURES [PDF]

open access: yesTASK Quarterly, 2001
Elastic properties of non-uniform, two-component systems are studied in frames of a model of percolation on a simple cubic lattice. It is shown that as the ratio of the bulk moduli of the components tends to zero, ϰ = Ks/Kh → 0 (where s, h denote the ...
KRZYSZTOF W. WOJCIECHOWSKI   +1 more
doaj   +1 more source

Fracture energy of high-Poisson's ratio oxide glasses [PDF]

open access: yes, 2022
International audienceThe apparent relationship between Poisson's ratio and fracture energy has been used to guide the discovery of ductile glasses with a brittle-to-ductile (BTD) transition at Poisson's ratio around 0.32.
Morten M. Smedskjaer   +12 more
core   +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

Continuous measurement of apparent Poisson's ratio for yarn based on omni-directional diameters [PDF]

open access: yes, 2017
We proposed a new method for measuring apparent Poisson's ratio for yarn and developed a new tensile tester equipped with a digital micrometer that can measure the omni-directional diameter of the yarn annularly while the yarn is elongated.
Zhu, Chunhong   +4 more
core   +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

Estimation of the Poisson's Ratio of the Rock Mass [PDF]

open access: yes, 2023
The value of Poisson's ratio is a crucial parameter in rock mechanics and engineering for both intact rock and rock mass. Poisson's ratio has not gotten the attention it merits compared to other essential mechanical characteristics of intact rock and ...
Davarpanah, Seyed Motreza   +2 more
core   +1 more source

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

The Poisson’s Ratio of enamel, dentin and dental restoration materials

open access: yesЭндодонтия Today, 2019
The Poisson ratio and the Young’s modulus form a pair of independent material constants of solids. For hard tooth tissues the Poisson’s ratio should correspond to the Poisson’s ratio of restorative materials in order to avoid overstresses at the border ...
S. A. Muslov   +2 more
doaj   +1 more source

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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