Publication result detail

Transverse cracking of layered structures: evaluation of fatigue crack propagation

NÁHLÍK, L.; HUTAŘ, P.; KNÉSL, Z.

Original Title

Transverse cracking of layered structures: evaluation of fatigue crack propagation

English Title

Transverse cracking of layered structures: evaluation of fatigue crack propagation

Type

WoS Article

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.

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

layered composites, bi-material interface, effective stress intensity factor.

Key words in English

layered composites, bi-material interface, effective stress intensity factor.

Authors

NÁHLÍK, L.; HUTAŘ, P.; KNÉSL, Z.

RIV year

2012

Released

01.01.2008

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

0255-5476

Periodical

Materials Science Forum

Volume

567-568

Number

xxx

State

Swiss Confederation

Pages from

221

Pages to

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",
  pages="221--224",
  issn="0255-5476"
}