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"
}