Detail publikace

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

ŠEVČÍK, M. PODUŠKA, J. NÁHLÍK, L. HUTAŘ, P. KUČERA, J.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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 intensity factor 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 discussed and a final recommendation for lifetime determination based on simplified methodology is given.

Klíčová slova

residual stress; polymer pipe; slow crack growth; lifetime estimation

Autoři

ŠEVČÍK, M.; PODUŠKA, J.; NÁHLÍK, L.; HUTAŘ, P.; KUČERA, J.

Rok RIV

2013

Vydáno

20. 9. 2013

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Ročník

2013

Číslo

592-593

Stát

Švýcarská konfederace

Strany od

165

Strany do

168

Strany počet

4

BibTex

@article{BUT109695,
  author="Martin {Ševčík} and Jan {Poduška} and Luboš {Náhlík} and Pavel {Hutař} and Jaroslav {Kučera}",
  title="Inaccuracy in Residual Stress Estimation and Its Influence on the Residual Lifetime of Polymer Pipes",
  journal="Key Engineering Materials (print)",
  year="2013",
  volume="2013",
  number="592-593",
  pages="165--168",
  doi="10.4028/www.scientific.net/KEM.592-593.165",
  issn="1013-9826"
}