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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" }