Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials

A novel 3D continuum shell structure is introduced as inclusion for composite materials with special mechanical properties in this paper. Its geometry is based on a hollow re-entrant tetrahedron. In a composite, such an inclusion can demonstrate a closure effect induced by external compression. Its...

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Main Authors:	Xiaonan Hou, Hong Hu, Vadim Silberschmidt
Format:	Default Article
Published:	2014
Subjects:	Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified
Online Access:	https://hdl.handle.net/2134/25631
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id	rr-article-9561932
record_format	Figshare
spelling	rr-article-95619322014-01-01T00:00:00Z Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials Xiaonan Hou (736827) Hong Hu (62885) Vadim Silberschmidt (1248129) Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified A novel 3D continuum shell structure is introduced as inclusion for composite materials with special mechanical properties in this paper. Its geometry is based on a hollow re-entrant tetrahedron. In a composite, such an inclusion can demonstrate a closure effect induced by external compression. Its specific deformation mechanism results in a special character of deformation and affects effective (global) mechanical properties of the composite. A finite-element method is used to explore quantitatively and qualitatively the deformation mechanism of the suggested inclusion and its effect on the overall mechanical performance of the composite. In this study, geometrical features of the inclusion are used as parameters. The obtained results demonstrate that this kind of inclusion could reduce the composite's Poisson's ratio; moreover, its magnitude is adjustable by changing geometrical parameters of the inclusion. Besides, an overall hardening effect is achieved for the composite, with the magnitude of global stiffness also significantly affected by geometrical features of the inclusion. Thus, the developed inclusion actually provides a potential to develop new composites with a tunable Poisson's ratio and enhanced mechanical properties. © 2014 AIP Publishing LLC. 2014-01-01T00:00:00Z Text Journal contribution 2134/25631 https://figshare.com/articles/journal_contribution/Tailoring_structure_of_inclusion_with_strain-induced_closure_to_reduce_Poisson_s_ratio_of_composite_materials/9561932 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified
spellingShingle	Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified Xiaonan Hou Hong Hu Vadim Silberschmidt Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials
description	A novel 3D continuum shell structure is introduced as inclusion for composite materials with special mechanical properties in this paper. Its geometry is based on a hollow re-entrant tetrahedron. In a composite, such an inclusion can demonstrate a closure effect induced by external compression. Its specific deformation mechanism results in a special character of deformation and affects effective (global) mechanical properties of the composite. A finite-element method is used to explore quantitatively and qualitatively the deformation mechanism of the suggested inclusion and its effect on the overall mechanical performance of the composite. In this study, geometrical features of the inclusion are used as parameters. The obtained results demonstrate that this kind of inclusion could reduce the composite's Poisson's ratio; moreover, its magnitude is adjustable by changing geometrical parameters of the inclusion. Besides, an overall hardening effect is achieved for the composite, with the magnitude of global stiffness also significantly affected by geometrical features of the inclusion. Thus, the developed inclusion actually provides a potential to develop new composites with a tunable Poisson's ratio and enhanced mechanical properties. © 2014 AIP Publishing LLC.
format	Default Article
author	Xiaonan Hou Hong Hu Vadim Silberschmidt
author_facet	Xiaonan Hou Hong Hu Vadim Silberschmidt
author_sort	Xiaonan Hou (736827)
title	Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials
title_short	Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials
title_full	Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials
title_fullStr	Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials
title_full_unstemmed	Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials
title_sort	tailoring structure of inclusion with strain-induced closure to reduce poisson's ratio of composite materials
publishDate	2014
url	https://hdl.handle.net/2134/25631
_version_	1797465342158569472

Tailoring structure of inclusion with strain-induced closure to reduce Poisson's ratio of composite materials

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