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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F02%3APU36547%21RIV%2F2004%2FGA0%2F262104%2FN
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Walkers Approach of the description of the influence of loading cycle asymmetry in the high-cycle region consists in multiplying by a factor of Pm where P is one of used asymmetry parameters, defined by the quotien of maximum stress and stress amplitude. This approach can be relatively simply generalized also for low-cycle region as shown by the authors last year. Certain difficulty appears for high values parameter P when an unacceptable relation UTS < sigma c Pm (sigma c means fatigue limit) can be obbtained. It has a very unpleasant consequence in the High diagram construction: the curve does not cross the UTS value on mean stress axis as asked. The paper proposes a modification which is identical with walkers approach for lower values of asymmetry parameter P and, on the other hand, does not allow to overstep the UTS value for high values of parameter P. The advantage of this modification is best presented in the Haigh diagram. Walkers Approach of the description of the influence of loading cycle asymmetry in the high-cycle region consists in multiplying by a factor of Pm where P is one of used asymmetry parameters, defined by the quotien of maximum stress and stress amplitude. This approach can be relatively simply generalized also for low-cycle region as shown by the authors last year. Certain difficulty appears for high values parameter P when an unacceptable relation UTS < sigma c Pm (sigma c means fatigue limit) can be obbtained. It has a very unpleasant consequence in the High diagram construction: the curve does not cross the UTS value on mean stress axis as asked. The paper proposes a modification which is identical with walkers approach for lower values of asymmetry parameter P and, on the other hand, does not allow to overstep the UTS value for high values of parameter P. The advantage of this modification is best presented in the Haigh diagram.
dcterms:title
Walkers Approach and its Modification in the Haigh Diagram Construction Walkers Approach and its Modification in the Haigh Diagram Construction
skos:prefLabel
Walkers Approach and its Modification in the Haigh Diagram Construction Walkers Approach and its Modification in the Haigh Diagram Construction
skos:notation
RIV/00216305:26210/02:PU36547!RIV/2004/GA0/262104/N
n3:strany
77-80
n3:aktivita
n4:P
n3:aktivity
P(GA106/03/1265)
n3:cisloPeriodika
288/2002,
n3:dodaniDat
n14:2004
n3:domaciTvurceVysledku
n10:2591006 n10:5757150
n3:druhVysledku
n17:J
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n8:predkladatel
n3:idSjednocenehoVysledku
670643
n3:idVysledku
RIV/00216305:26210/02:PU36547
n3:jazykVysledku
n18:eng
n3:klicovaSlova
Fatigue, Walkers approach, Haigh diagram
n3:klicoveSlovo
n15:Fatigue n15:Haigh%20diagram n15:Walkers%20approach
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[7E969EE5BB1F]
n3:nazevZdroje
Zeszyty naukowe politechniki Opolskiej seria Mechanika
n3:obor
n7:JL
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:projekt
n12:GA106%2F03%2F1265
n3:rokUplatneniVysledku
n14:2002
n3:svazekPeriodika
17
n3:tvurceVysledku
Kohout, Jan Věchet, Stanislav
s:issn
1429-6055
s:numberOfPages
4
n16:organizacniJednotka
26210