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The Effect of Residual Stress on the Process of Crack Growth Rate Determination in Polymer Pipes
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SYSNO ASEP 0469139 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The Effect of Residual Stress on the Process of Crack Growth Rate Determination in Polymer Pipes Author(s) Poduška, Jan (UFM-A) ORCID
Hutař, Pavel (UFM-A) RID, ORCID
Kučera, J. (CZ)
Sadílek, J. (CZ)
Frank, A. (AT)
Pinter, G. (AT)
Náhlík, Luboš (UFM-A) RID, ORCIDNumber of authors 7 Source Title Materials Structure & Micromechanics of Fracture VIII. - Zürrich : Trans Tech Publications, 2017 / Šandera P. - ISSN 1662-9779 - ISBN 978-3-03835-626-4 Pages roč. 258, č. 2017 (2017), s. 174-177 Number of pages 4 s. Publication form Print - P Action MSMF8. International Conference on Materials Structure and Micromechanics of Fracture /8./ Event date 27.06.2016 - 29.06.2016 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country CH - Switzerland Keywords polyethylene pipe ; slow crack growth ; CRB test ; residual stress ; lifetime Subject RIV JL - Materials Fatigue, Friction Mechanics OECD category Audio engineering, reliability analysis R&D Projects LM2015069 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFM-A - RVO:68081723 EID SCOPUS 85009772287 DOI 10.4028/www.scientific.net/SSP.258.174 Annotation Accelerated tests of the polyethylene pipes are necessary for the pipe lifetime calculations. Accepted methodology for prediction of slow crack grow rate in these materials is fatigue testing of CRB (cracked round bar) specimens. This paper deals with the FEM modelling of the crack propagation during the CRB test under the influence of residual stresses. The crack growth is described based on the stress intensity factor and Paris-Erdogan law. The purpose of this research is to determine, if the residual stress influences crack behavior during CRB test. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2018
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