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Foam Structures with a Negative Poisson's Ratio
Science, 1987A novel foam structure is presented, which exhibits a negative Poisson's ratio. Such a material expands laterally when stretched, in contrast to ordinary materials.
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Auxetic foams: Modelling negative Poisson's ratios
Acta Metallurgica et Materialia, 1994Abstract A finite element model for three-dimensional, open-called foams is developed. A reentrant cell shape is defined that has the unusual property of exhibiting a negative Poisson's ratio. By altering the cell shape it is possible to achieve different values for the elastic constants and different degrees of anisotropy.
K.E. Evans +2 more
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Negative Poisson's ratio in monolayer PdSe2
Computational Materials Science, 2019Abstract Mechanical properties of the PdSe2 monolayer are calculated by using first-principles calculations. By adding uniaxial strain along x- and y-directions, our results show that the negative Poisson’s ratio (NPR) can be observed in the Two Dimensional (2D) puckered structure of PdSe2 monolayer.
Gang Liu +4 more
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Perforated Sheets Exhibiting Negative Poisson's Ratios
Advanced Engineering Materials, 2010AbstractSheets made from readily available conventional materials containing diamond or star shaped perforations are shown to exhibit various Poisson's ratio values which could also be negative (auxetic). This behavior may be exhibited in both tension and compression and can be explained through models based on “rotating rigid units.” This provides an ...
Joseph N. Grima, Ruben Gatt
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Materials and structures with macroscopic negative Poisson’s ratio
International Journal of Engineering Science, 2012zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pasternak, E., Dyskin, A. V.
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Negative Poisson's Ratios for Extreme States of Matter
Science, 2000Negative Poisson's ratios are predicted for body-centered-cubic phases that likely exist in white dwarf cores and neutron star outer crusts, as well as those found for vacuumlike ion crystals, plasma dust crystals, and colloidal crystals (including certain virus crystals).
, Baughman +5 more
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Origin of anisotropic negative Poisson's ratio in graphene
Nanoscale, 2018The underlying mechanism and the electronic origin for the anisotropic NPR in graphene along zigzag and armchair directions are both well-understood based on the accurate first-principles study.
Zhenzhen Qin, Guangzhao Qin, Ming Hu
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Modeling of stents exhibiting negative Poisson's ratio effect
Computer Methods in Biomechanics and Biomedical Engineering, 2007Intravascular stents are metallic scaffolding structures deployed in the stenotic arteries to restore the lumen for the blood flow to the down stream tissues. Most stents are balloon expandable and are deployed from its crimped state through a balloon catheter. The efficacy of the stenting procedure mainly depends on the way the stent is deployed. Both
J, Raamachandran, K, Jayavenkateshwaran
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Negative-Poisson's-Ratio Materials: Auxetic Solids
Annual Review of Materials Research, 2017Poisson's ratio had long been considered to be an intrinsic material property, confined within a narrow domain and governed solely by the geometry of interatomic bonds. Materials with designed heterogeneity allow for control over the Poisson's ratio.
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Advances in negative Poisson's ratio materials
Advanced Materials, 1993Solids that become fatter in cross‐section when stretched are rare, but do exist. How such materials—which have a negative Poisson's ratio—can be created with specific properties, the implications of these unusual properties, and recent advances are discussed.
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