Publication detail

A fracture mechanics assessment of surface cracks existing in protective layers of multilayer composite pipes

HUTAŘ, P. NÁHLÍK, L. ŠESTÁKOVÁ, L. ŠEVČÍK, M. KNÉSL, Z. NEZBEDOVÁ, E.

Original Title

A fracture mechanics assessment of surface cracks existing in protective layers of multilayer composite pipes

Type

journal article - other

Language

English

Original Abstract

The influence of cracked protective layer on the integrity of composite multilayer pipes is analysed in this paper. The multilayer pipe is modeled as a particular case of a bi-material body consisting of two different homogeneous materials. The problem is studied under assumptions corresponding to small scale yielding conditions and ideal adhesion between protective and main layers is assumed. The case of a crack with its tip at the interface between protective and main layers is analyzed in details and the influence of the material composition on the corresponding critical pressure for a brittle-like failure is discussed. An approximate approach based on estimation of crack mouth opening displacement for thin protective layers is suggested. The results can be applied to study of scratch resistance of multi-layered plastic pipes.

Keywords

protective layers, multilayer pipes damage, fracture mechanics, bi-material interface, generalized stress intensity factor

Authors

HUTAŘ, P.; NÁHLÍK, L.; ŠESTÁKOVÁ, L.; ŠEVČÍK, M.; KNÉSL, Z.; NEZBEDOVÁ, E.

RIV year

2009

Released

9. 10. 2009

Publisher

Elsevier

Location

Amsterdam, Nizozemí

ISBN

0263-8223

Periodical

COMPOSITE STRUCTURES

Year of study

92

Number

5

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1120

Pages to

1125

Pages count

6

BibTex

@article{BUT49609,
  author="Pavel {Hutař} and Luboš {Náhlík} and Lucie {Malíková} and Martin {Ševčík} and Zdeněk {Knésl} and Eva {Nezbedová}",
  title="A fracture mechanics assessment of surface cracks existing in protective layers of multilayer composite pipes",
  journal="COMPOSITE STRUCTURES",
  year="2009",
  volume="92",
  number="5",
  pages="1120--1125",
  issn="0263-8223"
}