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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" }