A novel 3D composite structure with tunable Poisson's ratio and stiffness

Hou, Xiaonan and Hu, Hong (2015) A novel 3D composite structure with tunable Poisson's ratio and stiffness. physica status solidi (b), 252 (7). 1565–1574. ISSN 0370-1972

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Abstract

A composite structure with tunable mechanical properties is introduced. The composite consists of matrix material and a stack of inclusions. The specific hollow re-entrant shell inclusions could exhibit ‘expansion effect’ and ‘closure effect’ as responses to tensile and compressive loadings, respectively. Due to the special deformation mechanism of the inclusions, the global structure exhibits unusual properties over a wide range of applied deformations. The overall Poisson's ratio of the composite is significantly reduced comparing with its constituents, and an overall hardening effect is achieved. Moreover, according to the results of a parametric finite element analysis, the specific properties of this composite structure can be tailored by controlling the geometry features and density of the inclusions.

Item Type:
Journal Article
Journal or Publication Title:
physica status solidi (b)
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
82055
Deposited By:
Deposited On:
07 Oct 2016 15:12
Refereed?:
Yes
Published?:
Published
Last Modified:
29 Jul 2020 02:37