Tunable Negative Poisson’s Ratio in Van der Waals Superlattice [PDF]
Research, 2021 Negative Poisson’s ratio (NPR) materials are functional and mechanical metamaterials that shrink (expand) longitudinally after being compressed (stretched) laterally. By using first-principles calculations, we found that Poisson’s ratio can be tuned from
Xiaowen Li +5 more
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Negative Poisson's Ratio in Single-Layer Black Phosphorus [PDF]
Nature Communications, 2014 The Poisson's ratio is a fundamental mechanical property that relates the resulting lateral strain to applied axial strain. While this value can theoretically be negative, it is positive for nearly all materials, though negative values have been observed
Jiang, Jin-Wu, Park, Harold S.
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Metal [100] Nanowires with Negative Poisson's Ratio. [PDF]
Sci Rep, 2016 AbstractWhen materials are under stretching, occurrence of lateral contraction of materials is commonly observed. This is because Poisson’s ratio, the quantity describes the relationship between a lateral strain and applied strain, is positive for nearly all materials.
Ho DT, Kwon SY, Kim SY.
europepmc +6 more sources
A Tubular Biomaterial Construct Exhibiting a Negative Poisson's Ratio. [PDF]
PLoS ONE, 2016 Developing functional small-diameter vascular grafts is an important objective in tissue engineering research. In this study, we address the problem of compliance mismatch by designing and developing a 3D tubular construct that has a negative Poisson's ...
Jin Woo Lee +4 more
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The Temperature-Sensitive Anisotropic Negative Poisson’s Ratio of Carbon Honeycomb [PDF]
Nanomaterials, 2019 We report that carbon honeycomb, a new three-dimension carbon allotrope, exhibits large negative Poisson’s ratio, as large as −0.32, in tensile revealed via molecular dynamics simulations.
Wenrui Wang +3 more
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Low Porosity Metallic Periodic Structures with Negative Poisson's Ratio [PDF]
Advanced Materials, 2013 Auxetic behavior in low porosity metallic structures is demonstrated via a simple system of orthogonal elliptical voids. In this minimal 2D system, the Poisson's ratio can be effectively controlled by changing the aspect ratio of the voids. In this way,
Bertoldi, Katia +5 more
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A seamless auxetic substrate with a negative Poisson’s ratio of −1 [PDF]
Nature CommunicationsAuxetic 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 +12 more
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Negative Poisson’s ratio polyethylene matrix and 0.5Ba(Zr0.2 Ti0.8) O3–0.5(Ba0.7 Ca0.3)TiO3 based piezocomposite for sensing and energy harvesting applications [PDF]
Scientific Reports, 2022 Finite element studies were conducted on 0.5Ba(Zr0.2 Ti0.8) O3–0.5(Ba0.7 Ca0.3)TiO3 (BCZT) piezoelectric particles embedded in polyethylene matrix to create a piezocomposite having a positive and negative Poisson's ratio of −0.32 and 0.2.
Saptarshi Karmakar +9 more
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Double‐Negative Mechanical Metamaterials Displaying Simultaneous Negative Stiffness and Negative Poisson's Ratio Properties [PDF]
Advanced Materials, 2016 A scalable mechanical metamaterial simultaneously displaying negative stiffness and negative Poisson's ratio responses is presented. Interlocking hexagonal subunit assemblies containing 3 alternative embedded negative stiffness (NS) element types display Poisson's ratio values of -1 and NS values over two orders of magnitude (-1.4 N mm-1 to -160 N mm-1
Hewage, Trishan +3 more
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NEGATIVE POISSON’S RATIO AND PERCOLATING STRUCTURES
TASK 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
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