Detail publikace

Pressure pipe damage: Numerical estimation of point load effect II

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

Originální název

Pressure pipe damage: Numerical estimation of point load effect II

Anglický název

Pressure pipe damage: Numerical estimation of point load effect II

Jazyk

en

Originální abstrakt

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.

Anglický abstrakt

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.

Dokumenty

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",
  annote="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.",
  address="Trans Tech Publications",
  booktitle="Advances in Fracture and Damage Mechanics XII",
  chapter="100928",
  doi="10.4028/www.scientific.net/KEM.577-578.533",
  howpublished="print",
  institution="Trans Tech Publications",
  number="1",
  year="2014",
  month="january",
  pages="533--536",
  publisher="Trans Tech Publications",
  type="conference paper"
}