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Fatigue cracks in Eurofer 97 steel: Part II. Comparison of small and long fatigue crack growth

SYSNO ASEP	0359061
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Fatigue cracks in Eurofer 97 steel: Part II. Comparison of small and long fatigue crack growth
Author(s)	Kruml, Tomáš (UFM-A)_{RID, ORCID} Hutař, Pavel (UFM-A)_{RID, ORCID} Náhlík, Luboš (UFM-A)_{RID, ORCID} Seitl, Stanislav (UFM-A)_{RID, ORCID} Polák, Jaroslav (UFM-A)_{RID, ORCID}
Number of authors	5
Source Title	Journal of Nuclear Materials. - : Elsevier - ISSN 0022-3115 Roč. 412, 1 (2011), s. 7-12
Number of pages	6 s.
Language	eng - English
Country	NL - Netherlands
Keywords	ferritic-martensitic steel ; long crack growth ; small crack growth ; crack closure
Subject RIV	JL - Materials Fatigue, Friction Mechanics
R&D Projects	GA106/09/1954 GA ČR - Czech Science Foundation (CSF)
	GA101/09/0867 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z20410507 - UFM-A (2005-2011)
UT WOS	000291171400002
DOI	10.1016/j.jnucmat.2011.01.018
Annotation	The fatigue crack growth rate in the Eurofer 97 steel at room temperature was measured by two different methodologies. Small crack growth data were obtained using cylindrical specimens with a shallow notch and no artificial crack starters. The growth of semicircular cracks of length between 10–2000 lm was followed in symmetrical cycling with constant strain amplitude (Re = 1). Long crack data were measured using standard CT specimen and ASTM methodology, i.e. R = 0.1. The growth of cracks having the length in the range of 10–30 mm was measured. It is shown that the crack growth rates of both types of cracks are in a very good agreement if J-integral representation is used and usual assumptions of the crack closure effects are taken into account.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2012

Number of the records: 1