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Ring tests on high density polyethylene: Full investigation assisted by finite element modeling

Article dans une revue avec comité de lecture
Author
LAIARINANDRASANA, Lucien
1157 Centre des Matériaux [MAT]
DEVILLIERS, Clémence
302881 Veolia Environnement (FRANCE)
OBERTI, Sandrine.
233593 Veolia Environnement (FRANCE)
GAUDICHET, E
302881 Veolia Environnement (FRANCE)
LUCATELLI, Jean Marc
223303 Laboratoire Matériaux
ccFAYOLLE, Bruno
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/17905
DOI
10.1016/j.ijpvp.2010.12.002
Date
2011
Journal
International Journal of Pressure Vessels and Piping

Abstract

In order to characterize the mechanical behavior of HDPE pipes, the ASTM D 2290-04 standard recommends carrying out tensile tests on notched rings, cut out from the pipe. This very simple test is also utilized to investigate the aging effect of the pipe by determining the strain at failure. Comparison between full ring and notched ring mechanical responses are discussed. Constitutive modeling including strain rate effects was performed by finite element analysis. This allowed a better understanding of the stress state in the cross section perpendicular to the loading direction. Additionally, the influence of a thin layer of oxidized HDPE in the inner wall of the ring was studied in the light of the finite element results.

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