Počet záznamů: 1
Identification and application of Gurson–Tvergaard–Needleman model for sub-sized three-point- bend geometry
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SYSNO ASEP 0421095 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve SCOPUS Název Identification and application of Gurson–Tvergaard–Needleman model for sub-sized three-point- bend geometry Tvůrce(i) Stratil, Luděk (UFM-A) ORCID
Hadraba, Hynek (UFM-A) RID, ORCID
Kozák, Vladislav (UFM-A) RID, ORCID
Dlouhý, Ivo (UFM-A) RID, ORCIDCelkový počet autorů 4 Zdroj.dok. Acta Technica CSAV. - : Ústav termomechaniky AV ČR, v. v. i. - ISSN 0001-7043
Roč. 58, č. 2 (2013), s. 141-155Poč.str. 15 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova GTN model, Eurofer97 ; smooth tensile test ; J–R curve ; KLST specimen Vědní obor RIV JL - Únava materiálu a lomová mechanika Institucionální podpora UFM-A - RVO:68081723 EID SCOPUS 84881489775 Anotace The process identification and determination of micro-mechanical parameters of Gurson–Tvergaard–Needleman (GTN) model for Eurofer97 steel in ductile regime was carried out. The possibility to derive the GTN model parameters from smooth tensile specimen was verified. The process identification of the model parameters was done by combination of fractography and metallography examination of the broken tensile specimens and finite element analysis using Abaqus code. Crack resistance curve of the material was determined on sub-sized pre-cracked bend bars. The material’s length scale as a characteristic element size was chosen based on sensitivity analysis. The agreement between experimentally determined and simulated crack resistance curves was not satisfactory. The possible reasons for different behaviour of the GTN model are discussed. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2014
Počet záznamů: 1