Publication detail
The Effect of Residual Stress on the Process of Crack Growth Rate Determination in Polymer Pipes
PODUŠKA, J. HUTAŘ, P. KUČERA, J. SADÍLEK, J. FRANK, A. PINTER, G. NÁHLÍK, L.
English title
The Effect of Residual Stress on the Process of Crack Growth Rate Determination in Polymer Pipes
Type
journal article in Scopus
Language
en
Original abstract
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.
English abstract
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.
Keywords in English
polyethylene pipe;slow crack growth;CRB test; residual stress; lifetime
Released
16.01.2017
Publisher
Trans Tech Publications
Location
Switzerland
ISSN
1012-0394
Volume
258
Number
2017
Pages from–to
174–177
Pages count
4
BIBTEX
@article{BUT131842,
author="Jan {Poduška} and Pavel {Hutař} and Jaroslav {Kučera} and Jiří {Sadílek} and Andreas {Frank} and Gerald {Pinter} and Luboš {Náhlík},
title="The Effect of Residual Stress on the Process of Crack Growth Rate Determination in Polymer Pipes",
year="2017",
volume="258",
number="2017",
month="January",
pages="174--177",
publisher="Trans Tech Publications",
address="Switzerland",
issn="1012-0394"
}