Publication detail

A numerical methodology for lifetime estimation of HDPE pressure pipes

HUTAŘ, P. ŠEVČÍK, M. NÁHLÍK, L. PINTER, G. FRANK, A. MITEV, I.

Original Title

A numerical methodology for lifetime estimation of HDPE pressure pipes

Type

journal article - other

Language

English

Original Abstract

Using linear elastic fracture mechanics a new methodology for a lifetime assessment of internally pressurized polymer pipes was developed. The concept is based on the numerical calculation of stress intensity factors for pipes under different loading conditions in combination with experimentally determined creep crack growth kinetics. Comparison of simulated lifetimes with experimental data from tests of internally pressurized pipes proved the principal applicability of the concept suggested. Major parameters affecting the pipe lifetime are identified and discussed. Combination of the creep crack growth tests and numerical simulations can be a very powerful tool for lifetime estimation of plastic pipes under different loading conditions.

Keywords

time to failure curve; fracture mechanics; PE pipes; creep crack growth; lifetime estimation

Authors

HUTAŘ, P.; ŠEVČÍK, M.; NÁHLÍK, L.; PINTER, G.; FRANK, A.; MITEV, I.

RIV year

2011

Released

17. 12. 2011

Publisher

Elsevier

ISBN

0013-7944

Periodical

Engineering Fracture Mechanics

Year of study

78

Number

17

State

United Kingdom of Great Britain and Northern Ireland

Pages from

3049

Pages to

3058

Pages count

10

BibTex

@article{BUT74248,
  author="Pavel {Hutař} and Martin {Ševčík} and Luboš {Náhlík} and Gerald {Pinter} and Andreas {Frank} and Ivaylo {Mitev}",
  title="A numerical methodology for lifetime estimation of HDPE pressure pipes",
  journal="Engineering Fracture Mechanics",
  year="2011",
  volume="78",
  number="17",
  pages="3049--3058",
  issn="0013-7944"
}