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Advantageous Description of Short Fatigue Crack Growth Rates in Austenitic Stainless Steels with Distinct Properties

SYSNO ASEP	0544868
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Advantageous Description of Short Fatigue Crack Growth Rates in Austenitic Stainless Steels with Distinct Properties
Tvůrce(i)	Trávníček, Lukáš (UFM-A)_{RID, ORCID} Kuběna, Ivo (UFM-A)_{RID, ORCID} Mazánová, Veronika (UFM-A) Vojtek, Tomáš (UFM-A)_ORCID Polák, Jaroslav (UFM-A)_{RID, ORCID} Hutař, Pavel (UFM-A)_{RID, ORCID} Šmíd, Miroslav (UFM-A)_{RID, ORCID}
Celkový počet autorů	7
Číslo článku	475
Zdroj.dok.	Metals. - : MDPI Roč. 11, č. 3 (2021)
Poč.str.	20 s.
Jazyk dok.	eng - angličtina
Země vyd.	CH - Švýcarsko
Klíč. slova	short fatigue crack ; large scale yielding ; low cycle fatigue ; J-integral ; austenitic stainless steel ; residual lifetime prediction
Vědní obor RIV	JG - Hutnictví, kovové materiály
Obor OECD	Materials engineering
CEP	GJ19-25591Y GA ČR - Grantová agentura ČR
Způsob publikování	Open access
Institucionální podpora	UFM-A - RVO:68081723
UT WOS	000633884600001
EID SCOPUS	85102368809
DOI	10.3390/met11030475
Anotace	In this work two approaches to the description of short fatigue crack growth rate under large-scale yielding condition were comprehensively tested: (i) plastic component of the J-integral and (ii) Polak model of crack propagation. The ability to predict residual fatigue life of bodies with short initial cracks was studied for stainless steels Sanicro 25 and 304L. Despite their coarse microstructure and very different cyclic stress-strain response, the employed continuum mechanics models were found to give satisfactory results. Finite element modeling was used to determine the J-integrals and to simulate the evolution of crack front shapes, which corresponded to the real cracks observed on the fracture surfaces of the specimens. Residual fatigue lives estimated by these models were in good agreement with the number of cycles to failure of individual test specimens strained at various total strain amplitudes. Moreover, the crack growth rates of both investigated materials fell onto the same curve that was previously obtained for other steels with different properties. Such a aster curve was achieved using the plastic part of J-integral and it has the potential of being an advantageous tool to model the fatigue crack propagation under large-scale yielding regime without a need of any additional experimental data.
Pracoviště	Ústav fyziky materiálu
Kontakt	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Rok sběru	2022
Elektronická adresa	https://www.mdpi.com/2075-4701/11/3/475

Počet záznamů: 1