Publication result detail

Pressure pipe damage: Numerical estimation of point load effect II

MAJER, Z.; ZOUHAR, M.; ŠEVČÍK, M.; NÁHLÍK, L.; HUTAŘ, P.

Original Title

Pressure pipe damage: Numerical estimation of point load effect II

English Title

Pressure pipe damage: Numerical estimation of point load effect II

Type

Paper in proceedings (conference paper)

Original Abstract

It has been shown that the service lifetime of buried pipes can be reduced especially in relation to stress concentration caused by external point loads. If the pipe is loaded locally the stress is concentrated there and a crack can initiate at this position or the existing crack can be affected by corresponding stress redistribution. In the paper, the effect of a hard indenter, material properties, and the hoop stress level on the stress intensity factor of the axial inner crack are evaluated. A simple relation for estimation of the stress intensity factor value without FEM simulations is proposed.

English abstract

It has been shown that the service lifetime of buried pipes can be reduced especially in relation to stress concentration caused by external point loads. If the pipe is loaded locally the stress is concentrated there and a crack can initiate at this position or the existing crack can be affected by corresponding stress redistribution. In the paper, the effect of a hard indenter, material properties, and the hoop stress level on the stress intensity factor of the axial inner crack are evaluated. A simple relation for estimation of the stress intensity factor value without FEM simulations is proposed.

Keywords

polymer pressure pipes, point load, stress intensity factor, lifetime prediction

Key words in English

polymer pressure pipes, point load, stress intensity factor, lifetime prediction

Authors

MAJER, Z.; ZOUHAR, M.; ŠEVČÍK, M.; NÁHLÍK, L.; HUTAŘ, P.

RIV year

2015

Released

02.01.2014

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

978-3-03785-830-1

Book

Advances in Fracture and Damage Mechanics XII

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Volume

577-578

Number

1

State

Swiss Confederation

Pages from

533

Pages to

536

Pages count

4

BibTex

@inproceedings{BUT100928,
  author="Zdeněk {Majer} and Michal {Zouhar} and Martin {Ševčík} and Luboš {Náhlík} and Pavel {Hutař}",
  title="Pressure pipe damage: Numerical estimation of point load effect II",
  booktitle="Advances in Fracture and Damage Mechanics XII",
  year="2014",
  journal="Key Engineering Materials (print)",
  volume="577-578",
  number="1",
  pages="533--536",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/KEM.577-578.533",
  isbn="978-3-03785-830-1",
  issn="1013-9826"
}