Results 61 to 70 of about 22,427 (184)
Advances in Materials Science and Engineering, 2022 Smart auxetic structures are gaining attention in various areas such as architecture, clothing (sports and protective), civil, and medical applications owing to their negative Poisson’s ratio. Compared to ordinary structures, these structures have better
Muhammad Sohaib Anas +5 more
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Relations between loss angles in isotropic linear viscoelastic materials [PDF]
, 1977 Starting from the relations between complex dynamic moduli simple diagrams are deduced connecting the locus of complex Poisson's ratiov* ≡v′ +iv″ in the complexv* plane with differences between various loss angles.
Waterman, H.A.
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Negative Poisson’s ratios in siliceous zeolite MFI-silicalite [PDF]
The Journal of Chemical Physics, 2008 Brillouin scattering measurements of the single-crystal elastic properties of the as-made zeolite silicalite ∣(C3H7)4NF∣4[Si96O192]-MFI provides the first experimental evidence for on-axis negative Poisson’s ratios (auxeticity) in a synthetic zeolite structure. MFI laterally contracts when compressed and laterally expands when stretched along x1 and x2
Sanchez-Valle, Carmen +6 more
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Ion-Acoustic Solitons in Bi-Ion Dusty Plasma
, 2008 The propagation of ion-acoustic solitons in a warm dusty plasma containing two ion species is investigated theoretically. Using an approach based on the Korteveg-de-Vries equation, it is shown that the critical value of the negative ion density that ...
B. C. Kalita +11 more
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Piezoelectric Metamaterial with Negative and Zero Poisson’s Ratios [PDF]
Journal of Engineering Mechanics, 2019 AbstractThis study presents the finite element–based micromechanical modeling approach to obtain the electromechanical properties of the piezoelectric metamaterial based on honeycomb (HC) cellular ...
K. A. Khan +3 more
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The negative Poisson's ratio in graphene-based carbon foams [PDF]
Physical Chemistry Chemical Physics, 2018 The negative Poisson's ratio is found in 3D carbon foams, the mechanism of which can be utilized to manufacture new auxetic nanomaterials.
Jin Zhang, Qilin Xiong
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Effects of Poisson's ratio on the deformation of thin membrane structures under indentation [PDF]
Deformation/deflection of thin shells/membranes with clamped boundaries is a common material behaviour relevant to many engineering and medical conditions.
Ahearne +19 more
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Stretchable and negative-Poisson-ratio porous metamaterials
Nature CommunicationsAbstract Highly stretchable porous materials are promising for flexible electronics but their fabrication is a great challenge. Herein, several kinds of highly stretchable conductive porous elastomers with low or negative Poisson’s ratios are achieved by uniaxial, biaxial, and triaxial hot-pressing strategies.
Xiaoyu Zhang +10 more
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Negative Poisson ratio in two-dimensional networks under tension [PDF]
Physical Review E, 1993 The elastic properties of two-dimensional networks under tension are studied by the mean-field approximation and Monte Carlo simulation. The networks are characterized by fixed (polymerized) connectivity and either a square-well or a Hooke’s-law interaction among their components. Both self-avoiding and phantom networks are examined.
Boal, David H. +2 more
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Hierarchical Fibers with a Negative Poisson’s Ratio for Tougher Composites [PDF]
Materials, 2013 In this paper, a new kind of hierarchical tube with a negative Poisson’s ratio (NPR) is proposed. The first level tube is constructed by rolling up an auxetic hexagonal honeycomb. Then, the second level tube is produced by substituting the arm of the auxetic sheet with the first level tube and rolling it up. The Nth (
Sun, Yongtao, Pugno, Nicola M.
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