About: Effects of variable loading on residual fatigue life of the railway wheelset

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The paper deals with the effects of variable loading on residual fatigue life of the railway wheelset. The railway wheelsets can include some cracks created during manufacturing process or during previous operation. Therefore, it is important to know how the existing cracks will behave during further service of the train. The experiments show that the fatigue crack growth rate depends not only on size of the load amplitudes in a loading spectrum, but it depends also on the sequence of load amplitudes. Taking into account interaction effects of overloading cycles requires use a method that calculates increments of crack length in each cycle, i.e. cycle-by-cycle. One of such methods represents generalized Willenborg model. This model was used for residual fatigue life time estimations of railway wheelset and results obtained were compared with classical approach, which did not take into account interaction effects. Results obtained can be used for establishing of service intervals of railway wheelsets. The paper deals with the effects of variable loading on residual fatigue life of the railway wheelset. The railway wheelsets can include some cracks created during manufacturing process or during previous operation. Therefore, it is important to know how the existing cracks will behave during further service of the train. The experiments show that the fatigue crack growth rate depends not only on size of the load amplitudes in a loading spectrum, but it depends also on the sequence of load amplitudes. Taking into account interaction effects of overloading cycles requires use a method that calculates increments of crack length in each cycle, i.e. cycle-by-cycle. One of such methods represents generalized Willenborg model. This model was used for residual fatigue life time estimations of railway wheelset and results obtained were compared with classical approach, which did not take into account interaction effects. Results obtained can be used for establishing of service intervals of railway wheelsets. (en)
Title	Effects of variable loading on residual fatigue life of the railway wheelset Effects of variable loading on residual fatigue life of the railway wheelset (en)
skos:prefLabel	Effects of variable loading on residual fatigue life of the railway wheelset Effects of variable loading on residual fatigue life of the railway wheelset (en)
skos:notation	RIV/68081723:_____/14:00398726!RIV15-AV0-68081723
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(EE2.3.20.0214)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Náhlík, Luboš Hutař, Pavel Ševčík, Martin Pokorný, Pavel
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	13798
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/14:00398726
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	variable amplitude loading; residual fatigue life; generalized Willenborg model; fatigue crack; railway wheelset (en)
http://linked.open.../riv/klicoveSlovo	generalized Willenborg model variable amplitude loading fatigue crack railway wheelset residual fatigue life
http://linked.open...ontrolniKodProRIV	[58590FA591EF]
http://linked.open...v/mistoKonaniAkce	Sardinia
http://linked.open...i/riv/mistoVydani	Zurich
http://linked.open...i/riv/nazevZdroje	Advances in Fracture and Damage Mechanics XII
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Human Resources Development in the research of physical and material properties of emerging, newly developed and applied engineering materials
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Hutař, Pavel Náhlík, Luboš Pokorný, Pavel Ševčík, Martin
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000336693900031
http://linked.open.../riv/zahajeniAkce	2013-09-17 (xsd:date)
issn	1013-9826
number of pages	4 (xsd:int)
http://bibframe.org/vocab/doi	10.4028/www.scientific.net/KEM.577-578.121
http://purl.org/ne...btex#hasPublisher	Trans Tech Publications
https://schema.org/isbn	978-3-03785-830-1

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