Poisson's ratio and modern materials

  title={Poisson's ratio and modern materials},
  author={G Neville Greaves and Alan Lindsay Greer and Roderic S. Lakes and Tanguy Rouxel},
  journal={Nature Materials},
  pages={823 - 837}
In comparing a material's resistance to distort under mechanical load rather than to alter in volume, Poisson's ratio offers the fundamental metric by which to compare the performance of any material when strained elastically. The numerical limits are set by ½ and −1, between which all stable isotropic materials are found. With new experiments, computational methods and routes to materials synthesis, we assess what Poisson's ratio means in the contemporary understanding of the mechanical… Expand
A novel approach to the Poisson’s ratio of the yarn
Abstract The Poisson’s ratio is a fundamental and inherent property of the materials in their reaction to loading. Determining the correct value of the Poisson’s ratio leads to more accurateExpand
Geometry: The leading parameter for the Poisson's ratio of bending-dominated cellular solids
Control over the deformation behaviour that a cellular structure shows in response to imposed external forces is a requirement for the effective design of mechanical metamaterials, in particularExpand
Temperature Variability of Poisson’s Ratio and Its Influence on the Complex Modulus Determined by Dynamic Mechanical Analysis
Dynamic mechanical analysis (DMA) is the usual technology for the thermomechanical viscoelastic characterization of materials. This method monitors the instant values of load and displacement toExpand
On the conical indentation response of elastic auxetic materials: Effects of Poisson's ratio, contact friction and cone angle
Abstract The linear elastic analytical solution of an axisymmetric probe indenting a semi-infinite half-space forms the backbone of most indentation data analysis protocols. It has been noted in theExpand
Limits to Poisson's ratio in isotropic materials—general result for arbitrary deformation
The lower bound customarily cited for Poisson's ratio ?, ?1, is derived from the relationship between ? and the bulk and shear moduli in the classical theory of linear elasticity. However,Expand
The effect of mechanical-driven volumetric change on instability patterns of bilayered soft solids.
A new way to control surface instabilities of a bilayered system by changing Poisson's ratio of the material is demonstrated, which cannot only shift the critical strain for the onset of buckling, but also affect the buckling modes. Expand
Analysis on the influence of Poisson’s ratio on brittle fracture by applying uni-bond dual-parameter peridynamic model
Abstract Poisson’s ratio is a crucial mechanical parameter of materials, but its significance is normally underrated in practical application. Aiming at investigating how Poisson’s ratio influencesExpand
Poisson's ratio effects on the mechanics of auxetic nanobeams
Abstract Poisson's ratio is an important mechanical property that explains the deformation patterns of materials. A positive Poisson's ratio is a feature of the majority of materials. Some materials,Expand
Poisson's ratio bounds in orthotropic materials. Application to natural composites: wood, bamboo and Arundo donax
Abstract The paper discusses the restrictions the positive definite character of the strain energy imposes to the values of the Poisson's ratios in a linear elastic orthotropic constitutive law. ByExpand
Optimal Poisson’s ratios for laterally loaded rectangular plates
Although most materials used in practice possess positive Poisson’s ratio in the range 0 to ½, there has been increasing number of auxetic materials being developed and investigated. TheExpand


Interpretation of experimental data for Poisson's ratio of highly nonlinear materials
The Poisson's ratio of a material is strictly defined only for small strain linear elastic behavior. In practice, engineering strains are often used to calculate Poisson's ratio in place of theExpand
Poisson's Ratio in Linear Viscoelasticity – A Critical Review
Poisson's ratio is an elastic constant defined as the ratio of thelateral contraction to the elongation in the infinitesimal uniaxialextension of a homogeneous isotropic body. In a viscoelasticExpand
Negative Poisson's Ratio Materials.
  • S. Burns
  • Medicine, Materials Science
  • Science
  • 1987
Although a proof does not exist that restricts the ratio of transverse-to-lateral strains to a value that is larger than zero, for a system of two independent variables, that is, two stresses and two strains, Lakes' observations should not be construed as evidence that such a proof is impossible. Expand
Microstructure of isotropic materials with negative Poisson's ratio
MATERIALS that expand in the transverse direction under uniaxial extension, or that contract laterally when compressed, are said to have a negative Poisson's ratio, v. For an isotropic elasticExpand
Negative Poisson's ratios as a common feature of cubic metals
Poisson's ratio is, for specified directions, the ratio of a lateral contraction to the longitudinal extension during the stretching of a material. Although a negative Poisson's ratio (that is, aExpand
Composite materials with poisson's ratios close to — 1
A family of two-dimensional, two-phase, composite materials with hexagonal symmetry is found with Poisson's ratios arbitrarily close to — 1. Letting k∗, k1,k2 and μ∗,μ1,μ2 denote the bulk and shearExpand
Poisson's ratio and liquid's fragility
Arising from: V. N. Novikov & A. P. Sokolov Nature431, 961–963 (2004)The lack of a reliable theory of glass physics has led to the pursuit of correlations between various glass or viscous liquidExpand
Microporous materials with negative Poisson's ratios. I. Microstructure and mechanical properties
A microporous, anisotropic form of expanded polytetrafluoroethylene has been found to have a large negative major Poisson's ratio. The value of Poisson's ratio varies with tensile strain and canExpand
Sign Change of Poisson's Ratio for Carbon Nanotube Sheets
It is found that the in-plane Poisson's ratio of carbon nanotube sheets (buckypaper) can be tuned from positive to negative by mixing single-walled and multiwalled nanotubes, and density-normalized sheet toughness, strength, and modulus were substantially increased by this mixing. Expand
Auxetic behaviour from rotating rigid units
Auxetic materials exhibit the unexpected feature of becoming fatter when stretched and narrower when compressed, in other words, they exhibit a negative Poisson's ratio. This counter-intuitiveExpand