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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F13%3A00398709%21RIV14-MSM-68081723
rdf:type
skos:Concept n14:Vysledek
dcterms:description
This paper presents a quick methodology to assess the lifetime of an internally and externally pressurized polymer pipe using linear elastic fracture mechanics. The non-homogenous distribution of residual stress induced by production technology is incorporated into the numerical model of the cracked pipe. The stress intensity factor of the axially oriented crack growing from the inner surface through the pipe wall is estimated and combined with experimentally determined creep crack growth kinetics used for lifetime assessment. Major parameters affecting the pipe’s lifetime are identified and discussed. A simplified equation for estimation of the stress intensity factor value, removing the need for complicated finite element simulation, is then proposed. The combination of the creep crack growth tests and the approach presented can be a very powerful tool for reliable lifetime estimation of plastic pipes. This paper presents a quick methodology to assess the lifetime of an internally and externally pressurized polymer pipe using linear elastic fracture mechanics. The non-homogenous distribution of residual stress induced by production technology is incorporated into the numerical model of the cracked pipe. The stress intensity factor of the axially oriented crack growing from the inner surface through the pipe wall is estimated and combined with experimentally determined creep crack growth kinetics used for lifetime assessment. Major parameters affecting the pipe’s lifetime are identified and discussed. A simplified equation for estimation of the stress intensity factor value, removing the need for complicated finite element simulation, is then proposed. The combination of the creep crack growth tests and the approach presented can be a very powerful tool for reliable lifetime estimation of plastic pipes.
dcterms:title
The effect of residual stress on polymer pipe lifetime The effect of residual stress on polymer pipe lifetime
skos:prefLabel
The effect of residual stress on polymer pipe lifetime The effect of residual stress on polymer pipe lifetime
skos:notation
RIV/68081723:_____/13:00398709!RIV14-MSM-68081723
n14:predkladatel
n15:ico%3A68081723
n3:aktivita
n8:P n8:I
n3:aktivity
I, P(ED1.1.00/02.0068), P(EE2.3.30.0063), P(GAP108/12/1560)
n3:cisloPeriodika
SI
n3:dodaniDat
n7:2014
n3:domaciTvurceVysledku
n16:9200002 n16:6154557 n16:3875636
n3:druhVysledku
n19:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
71709
n3:idVysledku
RIV/68081723:_____/13:00398709
n3:jazykVysledku
n10:eng
n3:klicovaSlova
Residual stress; Linear elastic fracture mechanics; Lifetime estimation; Polyethylene pipes; Slow crack growth
n3:klicoveSlovo
n6:Linear%20elastic%20fracture%20mechanics n6:Lifetime%20estimation n6:Residual%20stress n6:Polyethylene%20pipes n6:Slow%20crack%20growth
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[10051DA99E1C]
n3:nazevZdroje
Engineering Fracture Mechanics
n3:obor
n17:JL
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
6
n3:projekt
n9:ED1.1.00%2F02.0068 n9:EE2.3.30.0063 n9:GAP108%2F12%2F1560
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
108
n3:tvurceVysledku
Frank, A. Náhlík, Luboš Kučera, J. Hutař, Pavel Pinter, G. Ševčík, Martin
n3:wos
000323868500009
s:issn
0013-7944
s:numberOfPages
11
n4:doi
10.1016/j.engfracmech.2013.04.014