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"
}