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Accelerated test for PE 100 and PE 100 RC pipes grades
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SYSNO ASEP 0354137 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Accelerated test for PE 100 and PE 100 RC pipes grades Author(s) Nezbedová, E. (CZ)
Hutař, Pavel (UFM-A) RID, ORCID
Knésl, Zdeněk (UFM-A)
Sadílek, J. (CZ)Number of authors 4 Source Title Polymeric Materials Halle/Saale. - Halle-Wittenberg : Martin Luther University, 2010 / Michler G. - ISBN 978-3-86829-282-4 Pages s. 1-6 Number of pages 6 s. Publication form CD-ROM - CD-ROM Action Polymeric Materials 2010 Event date 15.09.2010-17.09.2010 VEvent location Halle/Saale Country DE - Germany Event type EUR Language eng - English Country DE - Germany Keywords HDPE ; PENT test ; COD Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA106/08/1409 GA ČR - Czech Science Foundation (CSF) GC101/09/J027 GA ČR - Czech Science Foundation (CSF) GA106/09/0279 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation The failure mode called long time brittle failure (due to small crack growth – SCG) limits the lifetime of plastic pipes. Nowadays there are two accelerated tests (PENT and FNCT) that enable to estimate the lifetime of HDPE using in plastics pipes. For unimodal grade the time to failure according these accelerated tests is about tens hours, for bimodal grade PE 100 it is roughly thousands hours and for the new PE 100 RC grade is greater than 1 year. For the HDPE pipes grade with higher resistance against SCG some modification or alternatively new tests should be developed that enable even for these materials to obtain the results in relatively short time. In this contribution we focused mainly on some modification of PENT and FNCT and possible correlation between mechanical and structural test. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
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