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Atomistic Modeling of Different Loading Paths In Single Crystal Copper and Aluminum


Pezer, Robert; Trapić, Ivan
Atomistic Modeling of Different Loading Paths In Single Crystal Copper and Aluminum // Frattura ed Integrità Strutturale (Fracture and Structural Integrity), 10 (2016), 38; 191-197 doi:10.3221/IGF-ESIS.38.26 (međunarodna recenzija, članak, znanstveni)


Naslov
Atomistic Modeling of Different Loading Paths In Single Crystal Copper and Aluminum

Autori
Pezer, Robert ; Trapić, Ivan

Izvornik
Frattura ed Integrità Strutturale (Fracture and Structural Integrity) (1971-8993) 10 (2016), 38; 191-197

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Molecular dynamics ; Fatigue ; Multiaxial ; Copper ; Aluminum ; LAMMPS

Sažetak
Utilizing molecular dynamics (MD) integration model we have investigated some of the relevant physical processes caused by different loading paths at the atomic level in Cu and Al monocrystal specimen. Interactions among the atoms in the bulk are modeled with the standard realistic Embedded Atom Method (EAM) potentials. MD simulation gives us the detailed information about non-equilibrium dynamics including crystal structure defects, vacancies and dislocations. In particular, we have obtained result that indicate increase in the total energy of the crystal during loading (especially cyclic) that provides us direct quantitative evidence of the metal weakening. For the basic response, we have deformed copper and aluminum single crystal according to the simple loading path and a series of multiaxial loading-paths including cyclic repetition. We compute equivalent stress- strain diagrams as well as dislocation total length vs time graphs to describe signatures of the anisotropic response of the crystal.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti, Metalurgija, Strojarstvo



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-2516 - Višeskalno numeričko modeliranje deformiranja materijala od makro do nanorazine (Jurica Sorić, )

Ustanove
Fakultet strojarstva i brodogradnje, Zagreb,
Metalurški fakultet, Sisak

Citiraj ovu publikaciju

Pezer, Robert; Trapić, Ivan
Atomistic Modeling of Different Loading Paths In Single Crystal Copper and Aluminum // Frattura ed Integrità Strutturale (Fracture and Structural Integrity), 10 (2016), 38; 191-197 doi:10.3221/IGF-ESIS.38.26 (međunarodna recenzija, članak, znanstveni)
Pezer, R. & Trapić, I. (2016) Atomistic Modeling of Different Loading Paths In Single Crystal Copper and Aluminum. Frattura ed Integrità Strutturale (Fracture and Structural Integrity), 10 (38), 191-197 doi:10.3221/IGF-ESIS.38.26.
@article{article, year = {2016}, pages = {191-197}, DOI = {10.3221/IGF-ESIS.38.26}, keywords = {Molecular dynamics, Fatigue, Multiaxial, Copper, Aluminum, LAMMPS}, journal = {Frattura ed Integrit\`{a} Strutturale (Fracture and Structural Integrity)}, doi = {10.3221/IGF-ESIS.38.26}, volume = {10}, number = {38}, issn = {1971-8993}, title = {Atomistic Modeling of Different Loading Paths In Single Crystal Copper and Aluminum}, keyword = {Molecular dynamics, Fatigue, Multiaxial, Copper, Aluminum, LAMMPS} }

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Emerging Sources Citation Index (ESCI)
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • Scopus
  • Academic Journals Database
  • Google Scholar
  • ResearchGate


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