Publication detail

The effect of residual stresses on crack shape in polymer pipes

HUTAŘ, P. ŠEVČÍK, M. ZOUHAR, M. NÁHLÍK, L. KUČERA, J.

Original Title

The effect of residual stresses on crack shape in polymer pipes

Type

abstract

Language

English

Original Abstract

The effect of residual stresses on crack geometry and consequently on crack behaviour in polymer pipes is estimated. Crack geometry has a significant influence on the resulting stress intensity factor value. The shape of a crack in three-dimensional analysis was numerically estimated using a special routine which ensures constant stress intensity factor along the crack front. It was found that the crack shape was influenced by the presence of residual stresses and significant increase of the stress intensity factor for a pipe with residual stresses in comparison with a pipe without residual stresses was observed. An approximative equation for stress intensity factor estimation in a pipe with residual stresses was presented and its accuracy tested.

Keywords

residual stresses, crack shape, stres intensity factor

Authors

HUTAŘ, P.; ŠEVČÍK, M.; ZOUHAR, M.; NÁHLÍK, L.; KUČERA, J.

Released

19. 9. 2012

Pages from

73

Pages to

73

Pages count

1

BibTex

@misc{BUT95293,
  author="Pavel {Hutař} and Martin {Ševčík} and Michal {Zouhar} and Luboš {Náhlík} and Jaroslav {Kučera}",
  title="The effect of residual stresses on crack shape in polymer pipes",
  booktitle="The Fourth International Conference on Crack Paths 2012",
  year="2012",
  pages="73--73",
  note="abstract"
}