Publication detail

Numerical assessment of the HDPE pipe lifetime

HUTAŘ, P. ZOUHAR, M. ŠEVČÍK, M. KNÉSL, Z. NEZBEDOVÁ, E.

Original Title

Numerical assessment of the HDPE pipe lifetime

Type

conference paper

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

fracture mechanics; polymer pipe; residual lifetime; stress intensity factor

Authors

HUTAŘ, P.; ZOUHAR, M.; ŠEVČÍK, M.; KNÉSL, Z.; NEZBEDOVÁ, E.

RIV year

2011

Released

20. 8. 2011

Location

Merseburg

ISBN

978-3-86829-400-2

Book

13. Tagung Problemseminar Deformation und Bruchverhalten von Kunstoffen

Pages from

153

Pages to

159

Pages count

598

BibTex

@inproceedings{BUT88374,
  author="Pavel {Hutař} and Michal {Zouhar} and Martin {Ševčík} and Zdeněk {Knésl} and Eva {Nezbedová}",
  title="Numerical assessment of the HDPE pipe lifetime",
  booktitle="13. Tagung Problemseminar Deformation und Bruchverhalten von Kunstoffen",
  year="2011",
  pages="153--159",
  address="Merseburg",
  isbn="978-3-86829-400-2"
}