2020
Multi-phase ELAStic Aggregates (MELASA) software tool for modeling anisotropic elastic properties of lamellar composites
FRIÁK, Martin, Dušan LAGO, Nikola KOUTNÁ, David HOLEC, Tomáš REBOK et. al.Základní údaje
Originální název
Multi-phase ELAStic Aggregates (MELASA) software tool for modeling anisotropic elastic properties of lamellar composites
Autoři
FRIÁK, Martin (203 Česká republika, garant), Dušan LAGO (703 Slovensko, domácí), Nikola KOUTNÁ (203 Česká republika, domácí), David HOLEC (203 Česká republika), Tomáš REBOK (203 Česká republika, domácí) a Mojmír ŠOB (203 Česká republika)
Vydání
Computer Physics Communications, Amsterdam, Elsevier, 2020, 0010-4655
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10201 Computer sciences, information science, bioinformatics
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 4.390
Kód RIV
RIV/00216224:14610/20:00113974
Organizační jednotka
Ústav výpočetní techniky
UT WoS
000503093400014
Klíčová slova anglicky
composites; elasticity; anisotropy; superlattices; coherency; web application
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 8. 2023 09:57, Mgr. Marie Šípková, DiS.
Anotace
V originále
We introduce a new web-based tool called MELASA (Multi-phase ELASticAggregates), open-access available at https://melasa.cerit-sc.cz, for computations andvisualizations of anisotropic elastic properties of lamellar (nano-)composites. MELASAimplements a linear-elasticity method by M. Grimsditch and F. Nizzoli (Phys. Rev. B 33(1986) 5891), originally developed for superlattices of any symmetry. Our toolcomputes anisotropic elastic properties of a specific type of periodically reperatedlamellar (nano-)composites using matrices of elastic stiffnesses of co-existing phasesas input. Elastic properties are visualized in the form of directional dependencies ofselected elastic characteristics (Young's modulus and linear compressibility). MELASAfurther generalizes the Grimsditch-Nizzoli approach, which was originally formulated foronly two phases, to multiple-phase composites. Additionally, our implementation allowsfor treating internal rotations of local coordination systems corresponding to the naturalset of coordinates that match directional vectors of unit cell defining crystal latticewithin the co-existing phases. Fe-Al-based superalloy nanocomposites are employedas a numerical example of superlattices with the input and output elastic stiffnessesdetermined by quantum-mechanical calculations. In particular, three different atomicconfigurations of interfaces in superlattices containing the ordered Fe3Al phase and adisordered Fe-Al phase with 18.75at.\%Al (modeled by a special quasi-randomstructure, SQS) are considered. They differ by relative positions of sublattices in Fe3Al(an antiphase-like shift) and/or atomic planes in Fe-18.75at.%Al with respect to theinterface.
Návaznosti
GA17-22139S, projekt VaV |
| ||
LM2015085, projekt VaV |
| ||
90069, velká výzkumná infrastruktura |
|