Počet záznamů: 1
Numerical analysis of plastic deformation mechanisms in polycrystalline\ncopper under cyclic loading with different frequencies
- 1.
SYSNO ASEP 0588198 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Numerical analysis of plastic deformation mechanisms in polycrystalline
copper under cyclic loading with different frequenciesTvůrce(i) Šiška, Filip (UFM-A) RID, ORCID
Fintová, Stanislava (UFM-A) ORCID
Chlup, Zdeněk (UFM-A) RID, ORCID
Kuběna, Ivo (UFM-A) RID, ORCID
Jambor, Michal (UFM-A) ORCID, RID
Šulák, Ivo (UFM-A) ORCID
Chlupová, Alice (UFM-A) RID, ORCIDCelkový počet autorů 7 Číslo článku 108524 Zdroj.dok. International Journal of Fatigue. - : Elsevier - ISSN 0142-1123
Roč. 188, NOV (2024)Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Finite elements ; Crystal plasticity ; Copper ; VHCF ; Slip bands Vědní obor RIV JL - Únava materiálu a lomová mechanika Obor OECD Audio engineering, reliability analysis CEP EH22_008/0004634 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UFM-A - RVO:68081723 UT WOS 001283323400001 EID SCOPUS 85199464273 DOI https://doi.org/10.1016/j.ijfatigue.2024.108524 Anotace The frequency of cyclic loading has a strong effect on the fatigue lifetime of materials. High loading frequencies
allow reaching very high cycle fatigue regimes. The effects of cyclic loading with different frequencies are
studied using the finite element method within the framework of crystal plasticity. The numerical study repre sents copper polycrystal that undergoes tension–compression loading with frequencies 80 Hz and 20 kHz
respectively. The spatial distributions of stresses, strains, and plastic slip are used for estimation of volume
fraction, morphology, and plasticity mechanism of persistent slip bands. The results show that at 80 Hz cyclic
loading, plasticity in persistent slip band cells is dominated by the creation and annihilation of dislocations while
at 20 kHz cyclic loading, plasticity is driven by the back-and-forth movement of dislocations inside the persistent
slip band cells. The numerical study shows a correlation between amplitude and frequency of loading with spatial
distribution and morphology of persistent slip bands that can be related to the fatigue lifetime.Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2025 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0142112324003827?via%3Dihub
Počet záznamů: 1