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Numerical assessment of the HDPE pipe lifetime
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SYSNO ASEP 0371002 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Numerical assessment of the HDPE pipe lifetime Author(s) Hutař, Pavel (UFM-A) RID, ORCID
Zouhar, Michal (UFM-A)
Ševčík, Martin (UFM-A) RID
Knésl, Zdeněk (UFM-A)
Nezbedová, E. (CZ)Number of authors 5 Source Title 13. Tagung Problemseminar Deformation und Bruchverhalten von Kunstoffen. - Merseburg : Polymer Competence Centre Halle-Merseburg, 2011 - ISBN 978-3-86829-400-2 Pages s. 153-159 Number of pages 7 s. Publication form CD-ROM - CD-ROM Action 13. Tagung Problemseminar Deformation und Bruchverhalten von Kunstoffen Event date 29.06.2011-01.07.2011 VEvent location Merseburg Country DE - Germany Event type WRD Language eng - English Country DE - Germany Keywords HDPE pipe ; lifetime ; fracture mechanics Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA106/09/0279 GA ČR - Czech Science Foundation (CSF) GC101/09/J027 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation 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. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
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