Universal Negative Poisson Ratio of Self Avoiding Fixed Connectivity Membranes [PDF]
, 2001 We determine the Poisson ratio of self-avoiding fixed-connectivity membranes, modeled as impenetrable plaquettes, to be sigma=-0.37(6), in statistical agreement with the Poisson ratio of phantom fixed-connectivity membranes sigma=-0.32(4).
A. Cacciuto +38 more
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New examples of three-dimensional dilational materials [PDF]
, 2015 Two-dimensional dilational materials, for which the only easy mode of deformation is a dilation are reviewed and connections are drawn between models previously proposed in the literature. Some models which appear to be dilational materials, but which in
Milton, Graeme Walter
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Explicit parametric solutions of lattice structures with proper generalized decomposition (PGD): applications to the design of 3D-printed architectured materials [PDF]
, 2018 The final publication is available at Springer via http://dx.doi.org/10.1007/s00466-017-1534-9Architectured materials (or metamaterials) are constituted by a unit-cell with a complex structural design repeated periodically forming a bulk material with ...
Auricchio, Ferdinando +4 more
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Auxetic tubular scaffolds via melt electrowriting
Materials & Design, 2020 Auxetics are an interesting class of materials that expand in transverse directions when tensile loading is applied. For example, in contrast to conventional materials, an auxetic tube will increase in diameter when stretched along its axis.
Naomi C. Paxton +4 more
doaj +1 more source
Elasto-plastic shear behavior of reinforced honeycomb and auxetic reentrant lattices
Millenium, 2018 Introduction: Auxetic materials possess a negative Poisson’s ratio. Even though, the existence of isotropic auxetics is theoretically possible, they seem to be absent in natural states thus, there has been an effort to produce artificial auxetics mostly ...
Vitor Carneiro, José Meireles
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Fixed-Connectivity Membranes [PDF]
, 2004 The statistical mechanics of flexible surfaces with internal elasticity and shape fluctuations is summarized. Phantom and self-avoiding isotropic and anisotropic membranes are discussed, with emphasis on the universal negative Poisson ratio common to the
Bowick, Mark J.
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A 2D metamaterial with auxetic out-of-plane behavior and non-auxetic in-plane behavior
, 2017 Customarily, in-plane auxeticity and synclastic bending behavior (i.e. out-of-plane auxeticity) are not independent, being the latter a manifestation of the former. Basically, this is a feature of three-dimensional bodies.
Davini, Cesare +3 more
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Deformation mechanisms leading to auxetic behaviour in the α-cristobalite and α-quartz structures of both silica and germania [PDF]
, 2008 Analytical expressions have been developed in which the elastic behaviour of the α-quartz and α-cristobalite molecular tetrahedral frameworks of both silica and germania are modelled by rotation, or dilation or concurrent rotation and dilation of the ...
Alderson, Andrew, Evans, K E
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Auxetic two-dimensional lattice with Poisson's Ratio arbitrarily close to -1
, 2014 In this paper we propose a new lattice structure having macroscopic Poisson's ratio arbitrarily close to the stability limit -1. We tested experimentally the effective Poisson's ratio of the micro-structured medium; the uniaxial test has been performed ...
Brun, M., Cabras, L.
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Compliant rolling-contact architected materials for shape reconfigurability. [PDF]
, 2018 Architected materials can achieve impressive shape-changing capabilities according to how their microarchitecture is engineered. Here we introduce an approach for dramatically advancing such capabilities by utilizing wrapped flexure straps to guide the ...
Chizari, Samira +4 more
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