Results 21 to 30 of about 7,008 (229)

The Dynamic Stability Problem of Composite Annular Plates with Auxetic Properties

open access: yesEngineering Transactions, 2023
This paper presents the effect of the auxeticity on the behaviour of a plate subjected to the loss of stability. The plate structure is composed of three layers built of auxetic or conventional facings and a conventional core.
Dorota PAWLUS
doaj   +1 more source

Experimental and Numerical Analysis of 3D Printed Polymer Tetra-Petal Auxetic Structures under Compression

open access: yesApplied Sciences, 2021
Auxetic structures possess a negative Poisson ratio (ν < 0) as a result of their geometrical configuration, which exhibits enhanced indentation resistance, fracture toughness, and impact resistance, as well as exceptional mechanical response advantages ...
Demetris Photiou   +5 more
doaj   +1 more source

Dynamic behavior and damping capacity of auxetic foam pads [PDF]

open access: yes, 2006
A novel set of auxetic (negative Poisson's ratio) open cell polyurethane foam has been developed and tested under dynamic loading conditions to assess the viscoelastic response under white noise random excitation and compressive cycling.
Bezazi, A   +3 more
core   +1 more source

Auxetic regions in large deformations of periodic frameworks [PDF]

open access: yes, 2018
In materials science, auxetic behavior refers to lateral widening upon stretching. We investigate the problem of finding domains of auxeticity in global deformation spaces of periodic frameworks.
CS Borcea   +17 more
core   +4 more sources

Auxetic Structures from Rotating Squares

open access: yes, 2022
The article deals with auxetic structures made on the basis of suitably connected rigid rotating squares (from Grima and Evans), with axes of rotation on the squares&rsquo; surface. The geometric model and the resulting relationships that allow for the determination of Poisson&rsquo;s ratio are considered in detail.
Julian Plewa   +2 more
openaire   +2 more sources

Tunable Digital Material Properties of 3D Voxel Printers [PDF]

open access: yes, 2008
Digital materials are composed of many discrete voxels placed in a massively parallel layer deposition process, as opposed to continuous (analog) deposition techniques.
Hiller, Jonathan, Lipson, Hod
core   +1 more source

Vibroacoustic optimization of anti-tetrachiral and auxetic hexagonal sandwich panels with gradient geometry [PDF]

open access: yes, 2016
The work describes the vibroacoustic behavior of anti-tetrachiral and auxetic hexagonal gradient sandwich panels using homogenized finite element models to determine the mechanical properties of the auxetic structures, the natural frequencies and ...
Boldrin, Luca   +4 more
core   +2 more sources

A unified design method for 2D auxetic metamaterials based on a minimal auxetic structure

open access: yesInternational Journal of Solids and Structures, 2023
Auxetic metamaterials are architected structures that possess a unique property known as a negative Poisson's ratio. This remarkable characteristic enables them to expand or contract in a direction perpendicular to stretch or compression. Due to their exceptional attributes such as energy absorption and fracture resistance, these auxetic metamaterials ...
Pierre Roberjot, Just L. Herder
openaire   +2 more sources

Compressive mechanical properties of ex-situ auxetic composite-filled tubes

open access: yesJournal of Materials Research and Technology, 2021
Auxetic materials are a class of materials that expand transversely when stretched longitudinally. Recently, auxetic materials are gaining special interest in wide range of applications mainly due to their attractive mechanical behavior.
Yingying Xue   +4 more
doaj   +1 more source

Computational modelling of structural integrity following mass loss in polymeric charred cellular solids [PDF]

open access: yes, 2014
A novel computational technique is presented for embedding mass-loss due to burning into the ANSYS finite element modelling code. The approaches employ a range of computational modelling methods in order to provide more complete theoretical treatment of ...
Francis, Jonathan   +3 more
core   +2 more sources

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