Počet záznamů: 1
Compressive behaviour of additively manufactured periodical re-entrant tetrakaidecahedral lattices at low and high strain-rates
- 1.
SYSNO ASEP 0545381 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Compressive behaviour of additively manufactured periodical re-entrant tetrakaidecahedral lattices at low and high strain-rates Tvůrce(i) Neuhäuserová, M. (CZ)
Fíla, T. (CZ)
Koudelka_ml., P. (CZ)
Falta, J. (CZ)
Rada, Václav (UTAM-F) ORCID, SAI
Šleichrt, J. (CZ)
Zlámal, Petr (UTAM-F) RID, SAI, ORCID
Jiroušek, O. (CZ)Celkový počet autorů 8 Číslo článku 1196 Zdroj.dok. Metals. - : MDPI
Roč. 11, č. 8 (2021)Poč.str. 16 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova lattice structures ; auxetic structures ; re-entrant tetrakaidecahedron ; compression ; quasistatic behaviour ; dynamic behaviour Obor OECD Materials engineering CEP EF16_019/0000766 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UTAM-F - RVO:68378297 UT WOS 000690455000001 EID SCOPUS 85111132854 DOI 10.3390/met11081196 Anotace Compressive deformation behaviour of additively manufactured lattice structures based on re-entrant tetrakaidecahedral unit-cell geometry were experimentally investigated under quasi-static and dynamic loading conditions. Specimens of four different structures formed by three-dimensional periodical assembly of selected unit-cells were produced by a laser powder bed fusion technique from a powdered austenitic stainless steel SS316L. Quasi-static compression as well as dynamic tests using split Hopkinson pressure bar (SHPB) apparatus at two strain-rates were conducted to evaluate the expected strain rate sensitivity of the fundamental mechanical response of the structures. To evaluate the experiments, particularly the displacement fields of the deforming lattices, optical observation of the specimens using a high-resolution camera (quasi-static loading) and two synchronised high-speed cameras (SHPB experiments) was employed. An in-house digital image correlation algorithm was used in order to evaluate the anticipated auxetic nature of the investigated lattices. It was found that neither of the investigated structures exhibited auxetic behaviour although strain-rate sensitivity of the stress–strain characteristics was clearly identified for the majority of structures. Pracoviště Ústav teoretické a aplikované mechaniky Kontakt Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Rok sběru 2022 Elektronická adresa https://doi.org/10.3390/met11081196
Počet záznamů: 1