Počet záznamů: 1
Experimental and computational study on phase transformations in superelastic NiTi snake-like spring
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SYSNO ASEP 0494577 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Experimental and computational study on phase transformations in superelastic NiTi snake-like spring Tvůrce(i) Frost, M. (CZ)
Sedlak, P. (CZ)
Heller, Luděk (FZU-D) RID, ORCID
Kadeřávek, Lukáš (FZU-D) ORCID
Šittner, Petr (FZU-D) RID, ORCIDCelkový počet autorů 5 Číslo článku 095005 Zdroj.dok. Smart Materials and Structures. - : Institute of Physics Publishing - ISSN 0964-1726
Roč. 27, č. 9 (2018), s. 1-10Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova NiTi ; in situ x-ray diffraction ; modeling ; snake-like spring ; localization Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP GA18-03834S GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000440554400005 EID SCOPUS 85052703654 DOI 10.1088/1361-665X/aacca4 Anotace One of the major drawbacks of mechanically loaded superelastic NiTi structures is their short fatigue life, which is believed to be related to cyclic variation of relatively large strains due to martensitic phase transformation. Thus, determination of spatial and temporal evolution of martensite within such structures may help to avoid critical loading scenarios in practical applications. However, required data are often difficult to obtain and interpret. In this study, we present a possible approach to this issue and illustrate it on a comprehensive study on isothermal stretching of a planar superelastic NiTi snake-like spring, a prospective versatile superelastic actuator element. Specifically, we complement mechanical, electrical resistivity and x-ray diffraction methods with finite element simulations employing a progressive macroscopic constitutive model and reconstruct the spatial distribution in the most strained parts of the spring. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2019
Počet záznamů: 1