Detailed Information on Publication Record
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.Basic information
Original name
Multi-phase ELAStic Aggregates (MELASA) software tool for modeling anisotropic elastic properties of lamellar composites
Authors
FRIÁK, Martin (203 Czech Republic, guarantor), Dušan LAGO (703 Slovakia, belonging to the institution), Nikola KOUTNÁ (203 Czech Republic, belonging to the institution), David HOLEC (203 Czech Republic), Tomáš REBOK (203 Czech Republic, belonging to the institution) and Mojmír ŠOB (203 Czech Republic)
Edition
Computer Physics Communications, Amsterdam, Elsevier, 2020, 0010-4655
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10201 Computer sciences, information science, bioinformatics
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 4.390
RIV identification code
RIV/00216224:14610/20:00113974
Organization unit
Institute of Computer Science
UT WoS
000503093400014
Keywords in English
composites; elasticity; anisotropy; superlattices; coherency; web application
Tags
International impact, Reviewed
Změněno: 10/8/2023 09:57, Mgr. Marie Šípková, DiS.
Abstract
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.
Links
GA17-22139S, research and development project |
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LM2015085, research and development project |
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90069, large research infrastructures |
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