Počet záznamů: 1

Residual fatigue lifetime estimation of railway axles for various loading spectra

SYSNO ASEP	0449795
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Residual fatigue lifetime estimation of railway axles for various loading spectra
Tvůrce(i)	Pokorný, Pavel (UFM-A)_ORCID Hutař, Pavel (UFM-A)_{RID, ORCID} Náhlík, Luboš (UFM-A)_{RID, ORCID}
Celkový počet autorů	3
Zdroj.dok.	Theoretical and Applied Fracture Mechanics. - : Elsevier - ISSN 0167-8442 Roč. 82, APR (2016), s. 25-32
Poč.str.	8 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	Fatigue failure ; Residual fatigue lifetime ; Crack propagation ; Railway axle ; Load spectrum
Vědní obor RIV	JL - Únava materiálu a lomová mechanika
CEP	EE2.3.20.0214 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
	ED1.1.00/02.0068 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy
Institucionální podpora	UFM-A - RVO:68081723
UT WOS	000372674900005
EID SCOPUS	84959501652
DOI	10.1016/j.tafmec.2015.06.007
Anotace	The knowledge of the residual fatigue lifetime of railway axles is very important for the safe operation of trains. The railway axles could include some defects like cracks, scratches or inhomogeneities which could contribute to the fatigue crack initiation and in the final stage to axle failure. The non-destructive testing methods are not reliable for detection of relatively short (circa 1–2 mm), but even dangerous cracks. For conservative estimation of residual fatigue lifetime the railway axle containing initial crack should be considered. The residual fatigue lifetime is given by the number of load cycles for fatigue crack growth from the initial size of the crack up to the critical size with consequent fatigue failure of railway axle. Railway axles are used in different types of trains which are used under different conditions (regional trains, urban trains, high speed trains, freight trains, etc.). This work is focused on numerical estimation of residual fatigue lifetime of railway axle while several different load spectra taken from the literature are considered in the performed estimations. This paper also shows the influence of the discretization level of the continuous load spectrum and effect of magnification or diminution of load spectrum on the calculated residual fatigue lifetime of the railway axle.
Pracoviště	Ústav fyziky materiálu
Kontakt	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Rok sběru	2017

Počet záznamů: 1