Počet záznamů: 1
Overview of an experimental program for development of yield surfaces tracing method
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SYSNO ASEP 0546139 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Overview of an experimental program for development of yield surfaces tracing method Tvůrce(i) Štefan, Jan (UT-L)
Parma, Slavomír (UT-L) RID, ORCID, SAI
Marek, René (UT-L) RID
Plešek, Jiří (UT-L) RID, ORCID, SAI
Ciocanel, C. (US)
Feigenbaum, H. P. (US)Celkový počet autorů 6 Číslo článku 7606 Zdroj.dok. Applied Sciences-Basel. - : MDPI
Roč. 11, č. 16 (2021)Poč.str. 13 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova experimental mechanics ; phenomenological plasticity theory ; yield surface ; directional distortional hardening Vědní obor RIV JR - Ostatní strojírenství Obor OECD Mechanical engineering CEP LTAUSA18199 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy GA19-03282S GA ČR - Grantová agentura ČR EF15_003/0000493 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UT-L - RVO:61388998 UT WOS 000688745000001 EID SCOPUS 85113492912 DOI 10.3390/app11167606 Anotace This paper develops an experimental technique to evaluate the initial yield surfaces of metallic materials, as well as to study their evolution during plastic flow. The experimental tracing of yield surfaces is necessary for deriving and calibrating more robust phenomenological models of directional distortional hardening. Such models can be used to characterize the behavior of structures experiencing complicated and demanding loading modes, such as multiaxial ratcheting. The experimental technique developed in this work uses thin-walled tubular specimens, along with a servo-hydraulic machine, under various modes of tension/compression and torque. Identification of the onset of plastic flow is based on a small proof equivalent plastic strain evaluated from the outputs of a contact biaxial extensometer firmly attached to a specimen surface. This allows for evaluation of both the initial yield surface, as well as theevolved yield surface after a plastic prestrain. Throughout a test, continuous and fully automatized evaluation of elastic moduli and proof plastic strain is assured through algorithms written in C# language. The current technique is shown to provide promising results to effectively capture the yield surfaces of conventional metallic materials. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2022 Elektronická adresa https://www.mdpi.com/2076-3417/11/16/7606/htm
Počet záznamů: 1