The Temperature-Sensitive Anisotropic Negative Poisson’s Ratio of Carbon Honeycomb [PDF]
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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A Tubular Biomaterial Construct Exhibiting a Negative Poisson's Ratio. [PDF]
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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Tunable Negative Poisson’s Ratio in Van der Waals Superlattice
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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A seamless auxetic substrate with a negative Poisson’s ratio of −1 [PDF]
Auxetic 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(NPR) structure has been widely used in aerospace, biomedicine and military equipment and other fields owing to its outstanding energy absorption and adjustable volume.
HAN Guang, QIE YanHui, BAN BaoWang
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Double‐Negative Mechanical Metamaterials Displaying Simultaneous Negative Stiffness and Negative Poisson's Ratio Properties [PDF]
Intuitively, materials become both shorter and wider when compressed along their length. Here we show how a composite material or structure can display a simultaneous reversal in the direction of deformation for both the axial and transverse dimensions ...
Fabrizio Scarpa +2 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]
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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DYNAMIC CRUSHING OF HONEYCOMBS WITH A NEGATIVE POISSON’S RATIO—A FINITE ELEMENT STUDY
The deformation modes and energy absorption properties of honeycombs with a negative Poisson’s ratio under inplane dynamic crushing were studied by means of finite element simulation in this paper.
LU ZiXing, LI Kang
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Novel Negative Poisson's Ratio Lattice Structures with Enhanced Stiffness and Energy Absorption Capacity. [PDF]
The weak stiffness and strength of materials with negative Poisson’s ratio limits their application. In this paper, three types of novel lattices with negative Poisson’s ratio are proposed to improve not only stiffness and strength but also energy ...
Chen Z, Wang Z, Zhou S, Shao J, Wu X.
europepmc +2 more sources
Auxetic Carbon Honeycomb: Strain-Tunable Phase Transitions and Novel Negative Poisson’s Ratio [PDF]
Yanchun Li, Shuaiwei Wang, Baocheng Yang
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