About: The effect of residual stress on polymer pipe lifetime

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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. (en)
Title	The effect of residual stress on polymer pipe lifetime The effect of residual stress on polymer pipe lifetime (en)
skos:prefLabel	The effect of residual stress on polymer pipe lifetime The effect of residual stress on polymer pipe lifetime (en)
skos:notation	RIV/68081723:_____/13:00398709!RIV14-MSM-68081723
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0068), P(EE2.3.30.0063), P(GAP108/12/1560)
http://linked.open...iv/cisloPeriodika	SI
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Náhlík, Luboš Hutař, Pavel Ševčík, Martin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	71709
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/13:00398709
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Residual stress; Linear elastic fracture mechanics; Lifetime estimation; Polyethylene pipes; Slow crack growth (en)
http://linked.open.../riv/klicoveSlovo	Lifetime estimation Linear elastic fracture mechanics Polyethylene pipes Residual stress Slow crack growth
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[10051DA99E1C]
http://linked.open...i/riv/nazevZdroje	Engineering Fracture Mechanics
http://linked.open...in/vavai/riv/obor	JL
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Talented postdocs for scientific excellence in physics of materials Description of the slow crack growth in polymer materials under complex loading conditions Central european institute of technology
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	108
http://linked.open...iv/tvurceVysledku	Frank, A. Hutař, Pavel Kučera, J. Náhlík, Luboš Pinter, G. Ševčík, Martin
http://linked.open...ain/vavai/riv/wos	000323868500009
issn	0013-7944
number of pages	11 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.engfracmech.2013.04.014

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