Publication detail

Stanovení odolnosti HDPE materiálů vůči šíření trhlin z pohledu dvou-parametrové lomové mechaniky.

BAREŠ, P. FIEDLER, L.

Original Title

Stanovení odolnosti HDPE materiálů vůči šíření trhlin z pohledu dvou-parametrové lomové mechaniky.

English Title

Determination of crack propagation resistance of HDPE materials from the two-parameter fracture mechanics point of view

Type

conference paper

Language

Czech

Original Abstract

The influence of geometry constraint on the resulting values of fracture characteristics of HDPE material is analysed. To this aim the crack growth resistance (J-R) curves and the initial fracture toughness values for HDPE material were experimentally determined for an arc-shaped test specimen with and without protective layer. Two parameter fracture mechanics is applied and transferability of the experimental data to the two-layer pipe used in praxis is discussed. Finite element calculations were used for the investigation. It is concluded that the estimation of the service life of pipes based on the approach is conservative.

English abstract

The influence of geometry constraint on the resulting values of fracture characteristics of HDPE material is analysed. To this aim the crack growth resistance (J-R) curves and the initial fracture toughness values for HDPE material were experimentally determined for an arc-shaped test specimen with and without protective layer. Two parameter fracture mechanics is applied and transferability of the experimental data to the two-layer pipe used in praxis is discussed. Finite element calculations were used for the investigation. It is concluded that the estimation of the service life of pipes based on the approach is conservative.

Key words in English

Double-layer pipes, crack propagation, T-stress

Authors

BAREŠ, P.; FIEDLER, L.

RIV year

2006

Released

30. 11. 2006

Publisher

Ústav fyziky materiálů AVČR

Location

Brno

ISBN

80-239-8271-0

Book

Víceúrovňový design pokrokových materiálů 2006

Pages from

163

Pages to

170

Pages count

8

BibTex

@inproceedings{BUT25160,
  author="Pavel {Bareš} and Lubomír {Fiedler}",
  title="Stanovení odolnosti HDPE materiálů vůči šíření trhlin z pohledu dvou-parametrové lomové mechaniky.",
  booktitle="Víceúrovňový design pokrokových materiálů 2006",
  year="2006",
  pages="163--170",
  publisher="Ústav fyziky materiálů AVČR",
  address="Brno",
  isbn="80-239-8271-0"
}