2016
DOI: 10.1088/1361-665x/26/2/025013
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Fabrication and characterisation of a fully auxetic 3D lattice structure via selective electron beam melting

Abstract: A three-dimensional fully auxetic cellular structure with negative Poisson’s ratio is presented. Samples are fabricated from Ti6Al4V powder via selective electron beam melting. The influence of the strut thickness and the amplitude of the strut on the mechanical properties and the deformation behaviour of cellular structures is studied.

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Cited by 93 publications
(46 citation statements)
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“…Besides mechanical metamaterials (e.g., negative Poisson's ratio [2][3][4]) and optical metamaterials (e.g., negative index of refraction [5,6], a general review on photonic metamaterials is given in [7]). There are metamaterials that exhibit novel properties regarding their interaction with acoustic waves.…”
Section: Introductionmentioning
confidence: 99%
“…Besides mechanical metamaterials (e.g., negative Poisson's ratio [2][3][4]) and optical metamaterials (e.g., negative index of refraction [5,6], a general review on photonic metamaterials is given in [7]). There are metamaterials that exhibit novel properties regarding their interaction with acoustic waves.…”
Section: Introductionmentioning
confidence: 99%
“…Also, no influence of relative density on Poisson's ratio was observed in Ref. [91], most likely due to a small range of investigation for the relative density. In the present work, computational results on a wider range, from ρ* = 0.05 to 0.25, show that the auxetic behavior of lattices depends strongly on the relative density.…”
Section: Discussionmentioning
confidence: 81%
“…En la obtención del metal celular con estructura porosa ordenada, se observa que características tales como: la geometría de la celda unitaria junto con el tamaño de poro, la porosidad, la forma y el área transversal de las secciones de material sólido en las aristas de la configuración completa, presentan una influencia significativa en las propiedades mecánicas de la estructura; afectando directamente el proceso de renovación y consolidación del tejido óseo, así como, la adherencia de células de hueso en los canales de conexión entre los poros [29], [30]. Para la selección del cuboctaedro truncado como geometría de la celda, se tomaron como referentes los resultados de estudios previos, en los que este sólido ha sido usado como base en el diseño de modelos computacionales para evaluar el comportamiento elástico de las esponjas, y determinar sus propiedades efectivas [31].…”
Section: Discussionunclassified