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Journal ArticleDOI

Foam structures with a negative poisson's ratio

Roderic S. Lakes
- 27 Feb 1987 - 
- Vol. 235, Iss: 4792, pp 1038-1040
TLDR
A novel foam structure is presented, which exhibits a negative Poisson's ratio, and such a material expands laterally when stretched, in contrast to ordinary materials.
Abstract
A novel foam structure is presented, which exhibits a negative Poisson's ratio. Such a material expands laterally when stretched, in contrast to ordinary materials.

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Citations
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Applicability of correlated digital image correlation and infrared thermography for measuring mesomechanical deformation in foams and auxetics

TL;DR: In this paper , the full field thermomechanical analysis of the mesomechanical deformation in Ni/PU hybrid foams and Ni/polymer hybrid auxetic structures performing a correlative digital image correlation and infrared thermography was compared.
Journal ArticleDOI

Effect of twist on indentation resistance

TL;DR: In this article , the effect of twisting lattices on indentation resistance has been investigated, and it was shown that the force required to indent a twisting lattice to a set depth would increase with the amount of transverse deformation caused by twist.
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Quasi-static crushing response of additive manufactured 3D reentrant circular auxetics with different polymer matrices

TL;DR: In this paper , a 3D reentrant circular (REC) auxetic metamaterial was proposed, and the effect of matrix material on the crushing behaviors of the REC specimens was examined.
References
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Journal ArticleDOI

The mechanical properties of cellular solids

TL;DR: The mechanical properties (elastic, plastic, creep, and fracture) of cellular solids or foams are related to the properties of the cell wall material and to the cell geometry.
Journal ArticleDOI

Encystation and expression of cyst antigens by Giardia lamblia in vitro

TL;DR: In these studies, encystation of Giardia lamblia in vitro was demonstrated by morphologic, immunologic, and biochemical criteria and will aid in understanding the differentiation of an important protozoan pathogen.
Journal ArticleDOI

The anisotropic behavior of Poisson's ratio, Young's modulus, and shear modulus in hexagonal materials

TL;DR: In this paper, a method of calculating the anisotropy of Poisson's ratio is applied to trigonal and tetragonal crystals in the literature, and the method of calculation is extended to hexagonal crystals.
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