Results 31 to 40 of about 6,842,833 (174)

Stiffened star-shaped auxetic structure with tri-directional symmetry

open access: yes, 2022
A new auxetic structure was designed with rigid diamonds incorporated to enhance the strength of a star-shaped auxetic structure along with the symmetry in the present work.
Krishna Prasath Logakannan (19101179)   +3 more
core   +1 more source

Dynamic response of auxetic structures [PDF]

open access: yesVibroengineering Procedia, 2020
Auxetic materials have been investigated since the 1990’s, they are defined by a negative Poisson’s ratio which gives them interesting capabilities in energy and shock absorption. They are usually lattice structures (2D or 3D array of unit cells), which gives them high stiffness to weight properties and their properties can be tuned to suit a given ...
Matthieu Proffit, John Kennedy
openaire   +1 more source

Auxetic wrapped structures

open access: yes, 2021
Tato diplomová práce pojednává o auxetických textilních materiálech. Konkrétněji o auxetické přízi a vlastnostech podstatných pro její konstrukci. Jednou z těchto vlastností je tuhost jednotlivých komponentů příze.
Nováková, Tereza
core   +1 more source

A new auxetic structure with significantly reduced stress concentration effects

open access: yesMaterials & Design, 2019
Auxetic structures exhibit certain abnormal mechanical responses such as negative Poisson's ratios, mainly through the intertwined deformation attributes of inter-connected members of macro structural forms.
Kusum Meena, Sarat Singamneni
doaj   +1 more source

DYNAMIC CHARACTERISTICS STUDY OF RE-ENTRANT HONEYCOMB AUXETIC STRUCTURE FOR AL6082 [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2020
The Auxetic structures were developed to be used in various applications. Regarding the wide spreading of these structures, different research has been developed to study the different static and dynamic characteristics. This paper presents the numerical
Elsamanty M., Mostafa A., Ibrahim A.
doaj   +1 more source

The structure response of sandwich beams with metallic auxetic honeycomb cores under localized impulsive loading-experiments and finite element analysis

open access: yesMaterials & Design, 2019
In recent years, auxetic cellular materials such as auxetic reentrant honeycombs were widely studied due to its attractively negative Poisson's ratio.
Dengbao Xiao   +4 more
doaj   +1 more source

FINITE ELEMENT APPROACH AND MATHEMATICAL FORMULATION OF VISCOELASTIC AUXETIC HONEYCOMB STRUCTURES FOR IMPACT MITIGATION [PDF]

open access: yesJournal of Engineering Science and Technology, 2017
Auxetic structures are designed to be used for producing auxetic materials with controllable mechanical properties. The present study treats a design of viscoelastic auxetic honeycomb structures using numerical approach and mathematical formulation for ...
MOZAFAR SHOKRI RAD   +2 more
doaj  

Development and Characterization of Re-Entrant Auxetic Fibrous Structures for Application in Ballistic Composites [PDF]

open access: yes, 2018
Auxetic fibrous structures and composites with negative Poisson’s ratio (NPR) have huge potential for application in ballistic protection due to their high energy absorption and excellent impact resistance.
Gonçalves, Clara   +11 more
core   +1 more source

An Enhanced Three-Dimensional Auxetic Lattice Structure with Improved Property

open access: yes, 2020
In order to enhance the mechanical property of auxetic lattice structures, a new enhanced auxetic lattice structure was designed by embedding narrow struts into a three-dimensional (3D) re-entrant lattice structure.
Li Zhou   +3 more
core   +1 more source

Study on the Size Effect of Auxetic Cellular Materials [PDF]

open access: yes, 2017
The objective of this paper is to investigate the effects of scale of an auxetic cellular material sample on the evaluation of elastic properties. Size and boundary effects are studied in detail. This is achieved by conducting computer simulations of the
M. Janus-Michalska, Janus-Michalska, M.
core   +1 more source

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