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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F11%3APU96267%21RIV12-MSM-26210___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
In the case of large diameter HDPE and/or PP pipes the most usual joint is the butt weld. This paper focuses on fracture mechanics modeling of a weld bead. To this aim a stress concentrator created by connection between the weld bead and the pipes free surface is considered as a notch. In the first part of the contribution the connection of a weld bead and the pipes free surface is studied from the point of linear elastic fracture mechanics and the influence of high stress concentration in this region on crack initiation and propagation is discussed. In the second part the behavior of the weld bead under creep loading is studied. It is demonstrated that in the case of creep loading conditions the existence of stress concentrators caused by the weld bead has no negative influence on the life time of welded pipes. In the case of large diameter HDPE and/or PP pipes the most usual joint is the butt weld. This paper focuses on fracture mechanics modeling of a weld bead. To this aim a stress concentrator created by connection between the weld bead and the pipes free surface is considered as a notch. In the first part of the contribution the connection of a weld bead and the pipes free surface is studied from the point of linear elastic fracture mechanics and the influence of high stress concentration in this region on crack initiation and propagation is discussed. In the second part the behavior of the weld bead under creep loading is studied. It is demonstrated that in the case of creep loading conditions the existence of stress concentrators caused by the weld bead has no negative influence on the life time of welded pipes.
dcterms:title
Fracture Mechanics Model of a Weld Bead Fracture Mechanics Model of a Weld Bead
skos:prefLabel
Fracture Mechanics Model of a Weld Bead Fracture Mechanics Model of a Weld Bead
skos:notation
RIV/00216305:26210/11:PU96267!RIV12-MSM-26210___
n5:predkladatel
n6:orjk%3A26210
n3:aktivita
n15:S
n3:aktivity
S
n3:dodaniDat
n13:2012
n3:domaciTvurceVysledku
n12:6154557 n12:9200002
n3:druhVysledku
n19:D
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
200289
n3:idVysledku
RIV/00216305:26210/11:PU96267
n3:jazykVysledku
n21:eng
n3:klicovaSlova
creep, notch, stress concentration, stress triaxiality, polymer weld
n3:klicoveSlovo
n8:notch n8:stress%20concentration n8:stress%20triaxiality n8:polymer%20weld n8:creep
n3:kontrolniKodProRIV
[4270E49BC7B9]
n3:mistoKonaniAkce
Halle-Merseburg
n3:mistoVydani
Merseburg
n3:nazevZdroje
13. Tagung Problemseminar Deformation und Bruchverhalten von Kunstoffen
n3:obor
n20:JL
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:rokUplatneniVysledku
n13:2011
n3:tvurceVysledku
Lach, Ralf Nezbedová, Eva Knésl, Zdeněk Ševčík, Martin Grellmann, Wolfgang Hutař, Pavel
n3:typAkce
n16:CST
n3:zahajeniAkce
2011-06-29+02:00
s:numberOfPages
598
n14:hasPublisher
Neuveden
n17:isbn
978-3-86829-400-2
n10:organizacniJednotka
26210