Results 1 to 10 of about 1,662 (185)

Performance of 3D printed topologically optimized novel auxetic structures under compressive loading: experimental and FE analyses

open access: yesJournal of Materials Research and Technology, 2021
The auxetic structures, because of their negative Poisson's ratio, have a lot of potential applications in the aerospace and automobile industry due to their exceptional mechanical properties under bending, shear, and compression loads.
Sohail Gohar   +3 more
doaj   +3 more sources

Study of mechanical properties and enhancing auxetic mechanism of composite auxetic structures [PDF]

open access: yesEngineering Reports, 2021
The auxetic structures attract much attention because of their good properties, such as enhanced energy absorption capacity and buckling resistance. It is an important topic to combine the auxetic structures with other materials or structures to improve ...
Zengqin Shi   +5 more
doaj   +2 more sources

Design and evaluation of 3D-printed auxetic structures coated by CWPU/graphene as strain sensor [PDF]

open access: yesScientific Reports, 2022
A strain sensor characterized by elasticity has recently been studied in various ways to be applied to monitoring humans or robots. Here, 4 types of 3D-printed auxetic lattice structures using thermoplastic polyurethane as raw material were characterized:
Hyeong Yeol Choi   +2 more
doaj   +2 more sources

Auxetic metamaterials and structures

open access: yesCailiao gongcheng, 2021
Auxetic metamaterials and structures have excellent mechanical properties such as shear resistance, impact resistance, fracture resistance, energy absorption and vibration isolation, permeability variability, synclastic curvature in bending, etc. Auxetic
GAO Yu-kui
doaj   +2 more sources

Investigation of the Auxetic of a novel geometric structure and improvement of Poisson’s ratio at different inner thicknesses

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2023
Poisson’s ratio, one of the important mechanical properties of materials and structures, is positive for almost all of the known materials and structures. However, auxetic materials or structures has negative Poisson’s ratios.
İsmail ERDOĞAN, İhsan TOKTAS
doaj   +1 more source

Cellular Auxetic Structures for Mechanical Metamaterials: A Review. [PDF]

open access: yesSensors (Basel), 2020
Recent advances in lithography technology and the spread of 3D printers allow us a facile fabrication of special materials with complicated microstructures. The materials are called “designed materials” or “architectured materials” and provide new opportunities for material development.
Kelkar PU   +5 more
europepmc   +5 more sources

Periodic Auxetics: Structure and Design [PDF]

open access: yesThe Quarterly Journal of Mechanics and Applied Mathematics, 2017
Materials science has adopted the term of auxetic behavior for structural deformations where stretching in some direction entails lateral widening, rather than lateral shrinking. Most studies, in the last three decades, have explored repetitive or cellular structures and used the notion of negative Poisson's ratio as the hallmark of auxetic behavior ...
Borcea, Ciprian S., Streinu, Ileana
openaire   +4 more sources

Auxetics in smart systems and structures 2015 [PDF]

open access: yesSmart Materials and Structures, 2016
Auxetics comes from the Greek (auxetikos), meaning 'that which tends to expand'. The term indicates specifically materials and structures with negative Poisson's ratio (NPR). Although the Poisson's ratio is a mechanical property, auxetic solids have shown evidence of multifunctional characteristics, ranging from increased stiffness and indentation ...
Scarpa, Fabrizio   +3 more
openaire   +5 more sources

A novel tubular structure with negative Poisson's ratio based on gyroid-type triply periodic minimal surfaces

open access: yesVirtual and Physical Prototyping, 2023
A novel type of tubular structure with negative Poisson's ratio based on gyroid-type triply periodic minimal surfaces (TPMSs) is proposed in this study. This work is an attempt to design auxetic tubular structures based on TPMS.
Weiwei Wang   +4 more
doaj   +1 more source

Machine learning accelerated design of auxetic structures

open access: yesMaterials & Design, 2023
Auxetic metamaterials exhibit unusual expansion perpendicular to the direction of tensile loading, a behavior known as negative Poisson's ratio (NPR). The microstructures of auxetic metamaterials require rational design.
Menghuan Wang, Sheng Sun, Tong-Yi Zhang
doaj   +1 more source

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