Journal
MECHANICS OF MATERIALS
Volume 97, Issue -, Pages 67-75Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.mechmat.2016.02.012
Keywords
Auxetic; Negative Poisson's ratio; Metamaterials; Porous medium; Digital Image Correlation; Photoelasticity
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Funding
- Regione Autonoma della Sardegna (LR7) ['M4' CRP-27585]
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This paper proposes the design of a two-dimensional porous solid with omni-directional negative Poisson's ratio. The hexagonal periodic distribution of the pores makes the effective behavior isotropic. Both experimental tests and numerical simulations have been performed to determine the effective properties of the porous solid. A parametric study on the effect of the geometrical microstructural parameters is also presented. This auxetic structure is easy to fabricate and can be very useful in several engineering applications. (C) 2016 Elsevier Ltd. All rights reserved.
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