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Numerical Assessment of PE 80 and PE 100 Pipe Lifetime Based on Paris‐Erdogan Equation
Author(s) -
Frank Andreas,
Hutař Pavel,
Pinter Gerald
Publication year - 2012
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201000096
Subject(s) - extrapolation , stress intensity factor , bar (unit) , structural engineering , fracture (geology) , materials science , fracture mechanics , mechanics , composite material , mathematics , engineering , physics , mathematical analysis , meteorology
Summary: A novel accelerated fracture mechanics extrapolation procedure based on cyclic test with cracked round bar (CRB) specimens was verified by a correlation of real pipe failure time to simulated failure times at a temperature of 60 °C. The procedure was applied to predict the long‐term failure of modern PE 80 and PE 100 pipes 23 °C. Moreover, the used stress intensity factor concept also allows to consider the impact of arbitrary additional loading situations like soil loads or point loads and to assess pipe lifetime under complex loading situations.