Multilayer polymer pipes failure assessment based on a fracture mechanics approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU104563" target="_blank" >RIV/00216305:26210/13:PU104563 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081723:_____/13:00399398

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.engfailanal.2013.04.022" target="_blank" >http://dx.doi.org/10.1016/j.engfailanal.2013.04.022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.engfailanal.2013.04.022" target="_blank" >10.1016/j.engfailanal.2013.04.022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Multilayer polymer pipes failure assessment based on a fracture mechanics approach

Popis výsledku v původním jazyce

It is widely recognised that quasi-brittle fracture (through initiation and subsequent crack propagation mechanism) at low stresses is the most common mode of failure for high-density polyethylene pressure pipes. Slow crack growth in such pipes usually starts at a small defect at or near the inner pipe surface. Knowledge of a stress intensity factor is a key point for establishing the maximum load that a cracked pipe can withstand without failure, for description of the crack kinetic, and consequently for assessment of the pipe lifetime. To this aim a finite element stress analysis is used to calculate the stress intensity factor for internal and external cracks in a three layer composite plastic pipe consisting of two protective layers and the main pipe. The polyethylene pressure pipe is loaded by internal pressure. In kontrast to homogeneous pipes the estimations of KI for multilayer (composite) pipes are numerically more elaborated and the fracture mechanics approach is complicated

Název v anglickém jazyce

Multilayer polymer pipes failure assessment based on a fracture mechanics approach

Popis výsledku anglicky

It is widely recognised that quasi-brittle fracture (through initiation and subsequent crack propagation mechanism) at low stresses is the most common mode of failure for high-density polyethylene pressure pipes. Slow crack growth in such pipes usually starts at a small defect at or near the inner pipe surface. Knowledge of a stress intensity factor is a key point for establishing the maximum load that a cracked pipe can withstand without failure, for description of the crack kinetic, and consequently for assessment of the pipe lifetime. To this aim a finite element stress analysis is used to calculate the stress intensity factor for internal and external cracks in a three layer composite plastic pipe consisting of two protective layers and the main pipe. The polyethylene pressure pipe is loaded by internal pressure. In kontrast to homogeneous pipes the estimations of KI for multilayer (composite) pipes are numerically more elaborated and the fracture mechanics approach is complicated

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/GAP108%2F12%2F1560" target="_blank" >GAP108/12/1560: Popis šíření creepové trhliny v polymerních materiálech při komplexním mechanickém namáhání</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ENGINEERING FAILURE ANALYSIS

ISSN

1350-6307

e-ISSN

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Svazek periodika

33

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

151-162

Kód UT WoS článku

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EID výsledku v databázi Scopus

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