Results 41 to 50 of about 5,461,887 (221)
Nanomaterials, 2021 Using first-principles calculations, we predict highly stable cubic bialkali bismuthides Cs(Na, K)2Bi with several technologically important mechanical and anisotropic elastic properties.
Shahram Yalameha +3 more
doaj +1 more source
Impact absorption in auxetic damageable materials [PDF]
, 2021 In this work we study the behaviour of elastic and quasi-brittle auxetic metamaterial under impact. Particular reference is made to the use of these structured materials for facial protector devices for sport activities.
D. Faraci, C. Comi
core
Modelling and bending analysis of a 3D-printed sandwich structure with an auxetic star-4 core [PDF]
MATEC Web of ConferencesQuasi-static 3-point bending of additive manufactured sandwich components with auxetic star-4 cores was investigated to obtain information on the influence of geometry parameters of the auxetic structure on the stress distribution of the face sheets ...
Hartl Christoph +2 more
doaj +1 more source
Effect of Compressive Strain Rate on Auxetic Foam
Applied Sciences, 2021 Auxetic foams have previously been shown to have benefits including higher indentation resistance than their conventional counterparts, due to their negative Poisson’s ratio, making them better at resisting penetration by concentrated loads.
Olly Duncan +5 more
doaj +1 more source
Materials Science-Poland, 2013 Auxetic materials are endowed with a behavior that contradicts common sense, when subjected to an axial tensile load they increase their transverse dimension. In case of a compression load, they reduce their transverse dimension. Consequently, these materials have a negative Poisson’s ratio in such direction.
V. H. Carneiro, J. Meireles, H. Puga
openaire +1 more source
A mathematically defined 3D auxetic metamaterial with tunable mechanical and conduction properties
Materials & Design, 2021 An auxetic metamaterial is a type of mechanical metamaterial that has a negative Poisson's ratio. Most auxetic metamaterials are truss-based or originate from Boolean operations of simple geometries.
Xiaoyang Zheng +2 more
doaj +1 more source
Auxetic strains—insight from iso-auxetic materials [PDF]
Molecular Simulation, 2005 Auxeticity is the result of internal structural degrees of freedom that get in the way of affine deformations. This paper proposes a new understanding of strains in disordered auxetic materials. A class of iso-auxetic structures is identified, which are auxetic structures that are also isostatic, and these are distinguished from conventional elasto ...
openaire +1 more source
Auxetic Materials and Related Systems [PDF]
physica status solidi (b), 2014 to mechanical metamaterials and related systems with particular emphasis on auxetic systems. Such materials show counter-intuitive, negative behaviours. For example, auxetic materials exhibit negative Poisson’s ratios which mean that these systems get fatter rather than thinner when stretched.
Kim L. Alderson +3 more
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Space-reconfigurable reflector with auxetic lattice material
AIP Advances, 2022 A mechanically reconfigurable reflector (MRR) can adapt its geometry to facilitate a space antenna’s ability to scan along different angles. The reflector geometries corresponding to various scanning angles are calculated by coordinate change. The proper
Bin Xu +6 more
doaj +1 more source
Design of a Multistable Finger Prosthesis with Programmable Metamaterials
Advanced Engineering Materials, EarlyView.This research article shows the development of a multistable programmble metamaterial for the use as a finger prosthesis. The material was designed on different hierarchical levels where the influence of geometrical parameters and combination of mechanical elements was explored.
Franziska Wenz +5 more
wiley +1 more source