Publication detail
Transverse cracking of layered structures: evaluation of fatigue crack propagation
NÁHLÍK, L. HUTAŘ, P. KNÉSL, Z.
Czech title
Příčné šíření trhlin ve vrstevnatých materiálech: stanovení rychlosti šíření únavové trhliny
English title
Transverse cracking of layered structures: evaluation of fatigue crack propagation
Type
journal article in Web of Science
Language
en
Original abstract
The objective of this paper is to investigate the transverse fatigue cracking of layered structures. To this end a fatigue crack propagation rate for a crack growing perpendicularly through the interfaces between individual layers of the structure is estimated. The suggested procedure takes into account the influence of different material properties of the layers on the stress field around the fatigue crack and the change of the stress singularity exponent in the special case of a crack touching the material interface. The assumptions of linear elastic fracture mechanics and elastic behaviour of the composite are considered. It is shown that the existence of the interfaces can have a negative influence on the residual fatigue life of layered structures.
Czech abstract
Cílem práce je studium příčného praskání vrstevnatých materiálů. Je navržena procedura umožňující odhadnout rychlost šíření únavové trhliny v okolí rozhraní jednotlivých vrstev kompozitu, jenž bere v úvahu změnu singularity napětí v místě rozhraní.
English abstract
The objective of this paper is to investigate the transverse fatigue cracking of layered structures. To this end a fatigue crack propagation rate for a crack growing perpendicularly through the interfaces between individual layers of the structure is estimated. The suggested procedure takes into account the influence of different material properties of the layers on the stress field around the fatigue crack and the change of the stress singularity exponent in the special case of a crack touching the material interface. The assumptions of linear elastic fracture mechanics and elastic behaviour of the composite are considered. It is shown that the existence of the interfaces can have a negative influence on the residual fatigue life of layered structures.
Keywords in Czech
vrstevnaté kompozity, bi-materiálové rozhraní, efektivní součinitel intenzity napětí
Keywords in English
layered composites, bi-material interface, effective stress intensity factor.
RIV year
2008
Released
01.01.2008
Publisher
Trans Tech Publications
Location
Switzerland
ISSN
0255-5476
Journal
Materials Science Forum
Volume
567-568
Number
xxx
Pages from–to
221–224
Pages count
4
BIBTEX
@article{BUT46791,
author="Luboš {Náhlík} and Pavel {Hutař} and Zdeněk {Knésl},
title="Transverse cracking of layered structures: evaluation of fatigue crack propagation",
journal="Materials Science Forum",
year="2008",
volume="567-568",
number="xxx",
month="January",
pages="221--224",
publisher="Trans Tech Publications",
address="Switzerland",
issn="0255-5476"
}