Results 31 to 40 of about 5,526 (237)

Topological characteristics and mechanical properties of uniaxially thermoformed auxetic foam

open access: yesMaterials & Design, 2021
We present here a simplified procedure to manufacture auxetic PU foam via a single direction thermoforming compression process applied to conventional (pristine) open cell foam samples.
Qicheng Zhang   +7 more
doaj   +1 more source

Disordered auxetic metamaterials architected by random peanut-shaped perturbations

open access: yesMaterials & Design, 2021
Previous discussions about perforated auxetic metamaterials primarily focused on the ordered systems with high degree of geometric symmetry. However, it is difficult to manufacture or retain the perfect auxetic systems in practical applications.
Hui Wang, Sihang Xiao, Jianshan Wang
doaj   +1 more source

Hierarchical Auxetic Mechanical Metamaterials [PDF]

open access: yesScientific Reports, 2015
AbstractAuxetic mechanical metamaterials are engineered systems that exhibit the unusual macroscopic property of a negative Poisson's ratio due to sub-unit structure rather than chemical composition. Although their unique behaviour makes them superior to conventional materials in many practical applications, they are limited in availability.
Gatt R.   +7 more
openaire   +4 more sources

Deformation of Gels with Spherical Auxetic Inclusions

open access: yesGels, 2022
Auxetic metamaterials possess unnatural properties, such as a negative Poisson’s ratio, which offers interesting features when combined with traditional materials.
Jan Zidek, Petr Polacek, Josef Jancar
doaj   +1 more source

Architected Cementitious Cellular Materials Towards Auxetic Behavior

open access: yes, 2021
In recent years, the rapid development of digital fabrication technology has substantially boosted the research of architected cellular materials. Among them, the auxetic materials are a distinct type for their unusual deformation behavior: negative ...
Xu, Y. (author)
core   +1 more source

Unraveling the reinforcing mechanisms for cementitious composites with 3D printed multidirectional auxetic lattices using X-ray computed tomography

open access: yesMaterials & Design
This study investigates the mechanical properties of cementitious composites with 3D-printed auxetic lattices, featuring negative Poisson’s ratios (auxetic behavior) in multiple directions.
Zhaozheng Meng   +6 more
doaj   +1 more source

Efficacy of auxetic lattice structured shoe sole in advancing footwear comfort—From the perspective of plantar pressure and contact area

open access: yesFrontiers in Public Health
IntroductionDesigning footwear for comfort is vital for preventing foot injuries and promoting foot health. This study explores the impact of auxetic structured shoe soles on plantar biomechanics and comfort, motivated by the integration of 3D printing ...
Jifa Zhang   +5 more
doaj   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

Honeycomb and auxetic paper-based metamaterials [PDF]

open access: yes, 2013
Honeycomb papers are metamaterials gaining their features from their structures.
Sparavigna, Amelia Carolina
core  

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  

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