Inaccuracy in Residual Stress Estimation and Its Influence on the Residual Lifetime of Polymer Pipes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU110630" target="_blank" >RIV/00216305:26210/13:PU110630 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.165" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.165</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.165" target="_blank" >10.4028/www.scientific.net/KEM.592-593.165</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Inaccuracy in Residual Stress Estimation and Its Influence on the Residual Lifetime of Polymer Pipes

Popis výsledku v původním jazyce

This paper presents a methodology suitable for estimation of residual lifetime of polymer pipes. The linear and non-linear distribution of residual stresses in the pipe wall is studied using FEM analysis. The approximate relation for the stress intensityfactor calculation is presented. It is shown that the presented relation gives a stress intensity factor similar to the FEM analysis for the linear or non-linear distribution of residual stress. The suggested procedure produces a slightly conservative lifetime estimation where the accuracy of the procedure increases with increasing ratio between applied internal pressure level to residual stress level. The accuracy of the residual stress estimation and corresponding stress intensity factor is discussedand a final recommendation for lifetime determination based on simplified methodology is given.

Název v anglickém jazyce

Inaccuracy in Residual Stress Estimation and Its Influence on the Residual Lifetime of Polymer Pipes

Popis výsledku anglicky

This paper presents a methodology suitable for estimation of residual lifetime of polymer pipes. The linear and non-linear distribution of residual stresses in the pipe wall is studied using FEM analysis. The approximate relation for the stress intensityfactor calculation is presented. It is shown that the presented relation gives a stress intensity factor similar to the FEM analysis for the linear or non-linear distribution of residual stress. The suggested procedure produces a slightly conservative lifetime estimation where the accuracy of the procedure increases with increasing ratio between applied internal pressure level to residual stress level. The accuracy of the residual stress estimation and corresponding stress intensity factor is discussedand a final recommendation for lifetime determination based on simplified methodology is given.

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

—

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

Key Engineering Materials (print)

ISSN

1013-9826

e-ISSN

—

Svazek periodika

2013

Číslo periodika v rámci svazku

592-593

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

4

Strana od-do

165-168

Kód UT WoS článku

000336694400034

EID výsledku v databázi Scopus

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