Results 121 to 130 of about 5,461,887 (221)

Energy Absorption Behavior of Thickness-Dependent Functionally Graded Inconel 718 Auxetic Structures Produced by Laser Powder Bed Fusion

Metals
Auxetic metamaterials have outstanding negative Poisson’s ratio characteristics which can be beneficial in different industrial applications. The main aim of the present study is to investigate the effect of thickness-dependent functional grading (FG) on
Orhan Gülcan, Burak Özcan, Umut Çalışkan, Güher Pelin Toker   +3 more
doaj   +1 more source

Biaxial porosity gradient and cell size adjustment improve energy absorption in rigid and flexible 3D-printed reentrant honeycomb auxetic structures

Results in Engineering
This paper compares different uniaxial and biaxial graded designs of auxetic reentrant honeycomb structures to enhance their mechanical properties, especially the specific energy absorption under compressive load.
Martina Štaffová, František Ondreáš, Jan Žídek, Josef Jančář, Petr Lepcio   +4 more
doaj   +1 more source

Multifunctional cementitious composite: Conductive and auxetic behavior

Case Studies in Construction Materials
This research focused on developing an innovative multifunctional cementitious material with both conductive and auxetic properties simultaneously.
David Valverde-Burneo, Natividad García-Troncoso, Ignacio Segura, Manuel García-Laborda   +3 more
doaj   +1 more source

Influence of polymer properties on the mechanical behaviour of 3D-printed auxetic metamaterials and honeycomb structures under bending load

Manufacturing Review
Metamaterials with auxetic behaviour have great potential for a new generation of load-bearing lightweight sandwich structures due to their outstanding energy absorption capabilities.
Katrakova-Krüger Danka, Spicale Sarah, Hartl Christoph   +2 more
doaj   +1 more source

An autonomous design algorithm to experimentally realize three-dimensionally isotropic auxetic network structures without compromising density

npj Computational Materials
Auxetic materials have a negative Poisson’s ratio and are of significant interest in applications that include impact mitigation, membrane separations and biomedical engineering.
Meng Shen, Marcos A. Reyes-Martinez, Louise Ahure Powell, Mark A. Iadicola, Abhishek Sharma, Fabian Byléhn, Nidhi Pashine, Edwin P. Chan, Christopher L. Soles, Heinrich M. Jaeger, Juan J. de Pablo   +10 more
doaj   +1 more source

Auxetic structures in civil engineering applications: Experimental (by 3D printing) and numerical investigation of mechanical behavior

Results in Materials
Auxetic materials are a group of metamaterials that have a negative Poisson's ratio. The most important advantage of auxetics over conventional materials is higher energy absorption. Consequently, in Civil Engineering, a wide range of applications may be
Omid Khaghani, Davood Mostofinejad, Sayyed Mahdi Abtahi   +2 more
doaj   +1 more source

(In)efficacy of architected auxetic materials for impact mitigation

International Journal of Impact Engineering
It has been demonstrated that auxetic materials, characterized by a negative Poisson’s ratio, offer enhanced resistance to indentation, shear forces, fracture toughness and the absorption of energy. As such, they are reported in literature to be promising options for impact mitigation in military and space contexts. Auxetic materials are rare in nature,
Til Gärtner, Richard Dekker, Dennis van Veen, Sanne J. van den Boom, Lucas Amaral   +4 more
openaire   +2 more sources

Auxetic biomedical designs

, 2012
Auxetics are materials that exhibit a negative Poisson's ratio i.e. they expand when pulled apart. This makes auxetic materials are more resistant to fracture. Also auxetic materials do not dent easily-when compressed, the material compresses towards the
Gatt, Ruben, Grima, Joseph N., Casha, Aaron   +2 more
core  

Design and fabrication of complex quartz glass samples with a negative Poisson's ratio effect

Journal of Materials Research and Technology
High-purity and high-transparency quartz glass(Hereinafter referred to as quartz glass) is an amorphous material with significant potential in industries such as automotive and aerospace.
Hao Li, Longlong Li, Liang Guo, Jiaxing Guo, Qingmao Zhang   +4 more
doaj   +1 more source

Directional Auxetic Behavior of Mechanical Metamaterials: Material-Dependent and Geometry-Driven Mechanisms

Mechanical metamaterials derive their unconventional properties from geometry rather than composition, enabling phenomena such as negative Poisson’s ratio and tunable stiffness.
Peter Frankovský, Ján Kostka, Frankovsk\ufd, Peter, Jozef Bocko, Bocko, Jozef, Delyov\ue1, Ingrid, Sch\ufcrger, Barbara, Kostka, J\ue1n, Barbara Schürger, Ingrid Delyová   +9 more
core   +1 more source