Results 191 to 200 of about 3,214 (220)
Some of the next articles are maybe not open access.
Auxetic materials in design and architecture
Nature Reviews Materials, 2017Auxetic materials deform in an unusual way when stretched or compressed; they are flexible and adaptable, and, if made from responsive materials, can react to their environment. The opportunities they offer for innovative applications in fashion, design and architecture are just starting to be explored.
Athina Papadopoulou +2 more
openaire +1 more source
Auxetic Cellular Materials and Structures
Aerospace, 2005Auxetic materials and structures exhibit the very unusual property of becoming wider when stretched and narrower when squashed (i.e. they have a negative ‘Poisson’s ratio’). This property results in many beneficial effects in the characteristics of the system that make auxetics superior to conventional systems in many practical and high tech ...
Joseph N. Grima +4 more
openaire +1 more source
Damping in auxetic materials and structures.
The Journal of the Acoustical Society of America, 2010Negative Poisson’s ratio (NPR) (otherwise called auxetics) materials and structures feature enhanced energy absorption under cyclic loading both at low- and high-frequency excitations. We show in this paper experimental and simulation results related to open cell PU-PE foams, honeycombs, and composites, all exhibiting a negative Poisson’s ratio value ...
openaire +1 more source
Non‐porous grooved single‐material auxetics
physica status solidi (b), 2015Over the years, great advances have been made in the field of auxetic metamaterials where one of the main focuses was the production of systems which can be produced through simple and relatively inexpensive means. In this work, auxetic systems created through the introduction of elliptical grooves, meant to mimic the rotating units mechanism, are ...
Mizzi L., Gatt R., Grima J. N.
openaire +2 more sources
A Phase Transition Model Describing Auxetic Materials
2017In this paper we introduce a newmodel describing the behavior of auxetic materials in terms of a phase-field PDE system. More precisely, the evolution equations are recovered by a generalization of the principle of virtual power in which microscopic motions and forces, responsible for the phase transitions, are included. The momentum balance is written
E Bonetti, M Fabrizio, M Frémond
openaire +2 more sources
Poisson's ratios of auxetic and other technological materials
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2010Poisson's ratio, the relation between lateral contraction of a thin, linearly elastic rod when subjected to a longitudinal extension, has a long and interesting history. For isotropic bodies, it can theoretically range from +1/2 to -1; the experimental gamut for anisotropics is even larger.
openaire +2 more sources
Micromechanical Models for Auxetic Materials
2014This chapter provides a survey of micromechanical models that seek to predict and explain auxetic behavior, based on re-entrant microstructures, nodule-fibril microstructure, 3D tethered-nodule model, rotating squares , rectangles, triangles and tetrahedrals models, hard cyclic hexamers model, missing rib models , chiral and anti-chiral models ...
openaire +1 more source
Auxetic Structures Analysis: Exploratory Study on Auxetic Materials in Additive Manufacturing
Ibero-Latin American Congress on Computational Methods in Engineering (CILAMCE)Auxetic structures have aroused significant interest in the scientific community due to their unique properties of lateral expansion when subjected to tensile forces, and transverse deformation when subjected to negative Poisson's ratio. This article offers an analysis of these structures, where the theoretical foundations of the negative Poisson's ...
null Erick Battiston +2 more
openaire +1 more source
New auxetic materials with stretch-dominant architecture using simple trusses
Mechanics of Advanced Materials and Structures, 2023Reza Jafari Nedoushan +2 more
exaly