Comparative study of auxetic geometrics by means of computer-aided design and engineering

Álvarez Elipe, Juan Carlos and Diaz Lantada, Andres (2012). Comparative study of auxetic geometrics by means of computer-aided design and engineering. "Smart Materials and Structures", v. 21 (n. 10); p. 105004. ISSN 0964-1726. https://doi.org/10.1088/0964-1726/21/10/105004.

Description

Title: Comparative study of auxetic geometrics by means of computer-aided design and engineering
Author/s:
  • Álvarez Elipe, Juan Carlos
  • Diaz Lantada, Andres
Item Type: Article
Título de Revista/Publicación: Smart Materials and Structures
Date: October 2012
Volume: 21
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica y de Fabricación [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Auxetic materials (or metamaterials) are those with a negative Poisson ratio (NPR) and display the unexpected property of lateral expansion when stretched, as well as an equal and opposing densification when compressed. Such geometries are being progressively employed in the development of novel products, especially in the fields of intelligent expandable actuators, shape morphing structures and minimally invasive implantable devices. Although several auxetic and potentially auxetic geometries have been summarized in previous reviews and research, precise information regarding relevant properties for design tasks is not always provided. In this study we present a comparative study of two-dimensional and three-dimensional auxetic geometries carried out by means of computer-aided design and engineering tools (from now on CAD–CAE). The first part of the study is focused on the development of a CAD library of auxetics. Once the library is developed we simulate the behavior of the different auxetic geometries and elaborate a systematic comparison, considering relevant properties of these geometries, such as Poisson ratio(s), maximum volume or area reductions attainable and equivalent Young's modulus, hoping it may provide useful information for future designs of devices based on these interesting structures.

More information

Item ID: 16838
DC Identifier: http://oa.upm.es/16838/
OAI Identifier: oai:oa.upm.es:16838
DOI: 10.1088/0964-1726/21/10/105004
Official URL: http://iopscience.iop.org/0964-1726/21/10/105004/article
Deposited by: Memoria Investigacion
Deposited on: 22 Jan 2014 17:52
Last Modified: 10 Nov 2017 14:25
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