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Accelerated tests for lifetime prediction of PE-HD pipe grades
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SYSNO ASEP 0481318 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Accelerated tests for lifetime prediction of PE-HD pipe grades Author(s) Nezbedová, E. (CZ)
Pinter, G. (AT)
Frank, A. (AT)
Hutař, Pavel (UFM-A) RID, ORCID
Poduška, Jan (UFM-A) ORCID
Hodan, Jiří (UMCH-V)Number of authors 6 Article number UNSP e1600096 Source Title MACROMOLECULAR SYMPOSIA, 373. - Weinheim : WILEY-VCH Verlag, 2017 - ISSN 1022-1360 Number of pages 8 s. Publication form Print - P Action PolyMerTec16 Event date 15.06.2016 - 17.06.2016 VEvent location Merseburg Country DE - Germany Event type WRD Language eng - English Country DE - Germany Keywords accelerated tests ; lifetime prediction ; PE-HD ; plastic pipes Subject RIV JL - Materials Fatigue, Friction Mechanics OECD category Audio engineering, reliability analysis Subject RIV - cooperation Institute of Macromolecular Chemistry - Macromolecular Chemistry Institutional support UFM-A - RVO:68081723 ; UMCH-V - RVO:61389013 UT WOS 000404021100002 EID SCOPUS 85021107120 DOI 10.1002/masy.201600096 Annotation Pipe failure in long-term applications is characterized by creep crack initiation and creep crack growth. Both can be determined by fracture mechanics based tests of the pipe materials. Nowadays, several accelerated tests are available: PENT (Pennsylvania Edge Notch Tensile test), FNCT (Full Notch Creep Tensile test), CRB (Cracked Round Bar test) or SHT (Strain Hardening Test) and NCBT (Notched Cylindrical Bars Test). The PENT, CRB and SHT were applied to one unimodal polyethylene (PE 80), four bimodal polyethylene (three of PE 100 and one of PE 100-RC) and one PE-BF (for blow molding). The contribution is focused mainly on two topics: (i) difference in specimen's preparation and test conditions and (ii) comparison of the experimental results obtained using different accelerated tests. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2018
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