Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Daphne Attard"'
Autor:
Russell Galea Mifsud, Grace Anne Muscat, James N. Grima-Cornish, Krzysztof K. Dudek, Maria A. Cardona, Daphne Attard, Pierre-Sandre Farrugia, Ruben Gatt, Kenneth E. Evans, Joseph N. Grima
Publikováno v:
Materials, Vol 17, Iss 7, p 1506 (2024)
Auxetics are materials, metamaterials or structures which expand laterally in at least one cross-sectional plane when uniaxially stretched, that is, have a negative Poisson’s ratio. Over these last decades, these systems have been studied through v
Externí odkaz:
https://doaj.org/article/5709d88b2a7749aa98487e114465667d
Autor:
Russell Galea, Pierre-Sandre Farrugia, Krzysztof K. Dudek, Daphne Attard, Joseph N. Grima, Ruben Gatt
Publikováno v:
Materials & Design, Vol 226, Iss , Pp 111596- (2023)
Prototyping of three-dimensional mechanical metamaterials that exhibit negative Poisson’s ratio is usually performed through additive manufacturing. Although this technique has a huge potential, its use to engineer mechanical metamaterials for cons
Externí odkaz:
https://doaj.org/article/826b8ab7808943c48d25bf1ae49e361c
Publikováno v:
Frontiers in Materials, Vol 8 (2021)
Negative thermal expansion (NTE) materials and structures exhibit the anomalous property of shrinking rather than expanding when heated. This work examines the potential of multi-material planar re-entrant and non-re-entrant honeycombs to exhibit ano
Externí odkaz:
https://doaj.org/article/34a4110895d54c8dbe86c52040d063c8
Autor:
Joseph N. Grima, Michelle Vella Wood, Nadia Portelli, James N. Grima-Cornish, Daphne Attard, Alfred Gatt, Cynthia Formosa, Dario Cerasola
Publikováno v:
Medicina, Vol 58, Iss 1, p 77 (2022)
Background and Objectives: Rowing is a sport that involves constant gripping, pulling/pushing, and rotational movements of the hands, in a cyclic periodic manner with every stroke, with hundreds of strokes being taken within a short period of time. D
Externí odkaz:
https://doaj.org/article/f945c27519184b7f9324e1495132ca43
Publikováno v:
Materials, Vol 13, Iss 9, p 2193 (2020)
In this work, through the use of a theoretical model, we analyse the potential of a specific three-dimensional mechanical metamaterial composed of arrowhead-like structural units to exhibit a negative Poisson’s ratio for an arbitrary loading direct
Externí odkaz:
https://doaj.org/article/8b91aec215644f1ca9b4fe58b63e279e
Publikováno v:
Materials, Vol 13, Iss 1, p 79 (2019)
Auxetics (negative Poisson’s ratio) and materials with negative linear compressibility (NLC) exhibit the anomalous mechanical properties of getting wider rather than thinner when stretched and expanding in at least one direction under hydrostatic p
Externí odkaz:
https://doaj.org/article/1f4d9e2a173648a38c7939e3c7664ed3
Publikováno v:
Materials, Vol 11, Iss 5, p 725 (2018)
Auxetic structures and materials expand laterally when stretched. It has been argued that this property could be applied in the design of smart filters with tunable sieving properties. This work analyses the filtration properties of a class of auxeti
Externí odkaz:
https://doaj.org/article/3e57c6ffa5df4f9a89b6dce70d75d827
Publikováno v:
TASK Quarterly, Vol 18, Iss 2 (2014)
This paper investigates the suitability of the General Utility Lattice Program (GULP) for studying auxetic materials at the molecular level. GULP is a force-field based molecular modelling package which incorporates the ‘core-shell’ model for sim
Externí odkaz:
https://doaj.org/article/22287451ed4f4e98a098e0c8a39342d3
Publikováno v:
TASK Quarterly, Vol 18, Iss 2 (2014)
This study considers a 3D basic unit-cell proposed for auxetic and non-auxetic foams namely the elongated hexagonal dodecahedron deforming through changes in angle between its ligaments (idealised hinging model). This structure was studied in detail
Externí odkaz:
https://doaj.org/article/8b94f4bb95c2453bb386bb88e840cffa
Publikováno v:
MRS Advances. 5:717-725
‘Negative mechanical materials / metamaterials’ refer to materials and/or engineered systems that exhibit anomalous macroscopic thermo-mechanical properties that emerge due to the structure of their subunits, rather than the specific chemical com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f233a588f5c8814713584d07bbd86a07
https://doi.org/10.1557/adv.2020.48
https://doi.org/10.1557/adv.2020.48