Publication detail

Quantification of the influence of vertex singularities on fatigue crack behavior

HUTAŘ, P. NÁHLÍK, L. KNÉSL, Z.

Czech title

Vliv povrchové singularity na chování únavové trhliny

English title

Quantification of the influence of vertex singularities on fatigue crack behavior

Type

journal article - other

Language

en

Original abstract

The effect of vertex singularity on fatigue crack behavior is presented in the article. The methodology based on generalized stress intensity factor and model of V-notch is used for reliable estimation of the fatigue crack growth rate in the area close to the free surface, where the effect of the vertex singularity is dominant. It is shown that decrease of the crack singularity exponent close to the vertex point leads to a decrease in the fatigue crack growth rate and contributes to a typical curved crack front observed experimentally for through crack.

Czech abstract

Práce se zabývá kvantifikací vlivu tzv. povrchové singularity na chování únavové trhliny. Je ukázán vliv povrchové singularity, a z ní vyplývající zpomalení šířící se trhliny v blízkosti povrchu tělesa, na typicky zakřivený tvar čela šířící se trhliny.

English abstract

The effect of vertex singularity on fatigue crack behavior is presented in the article. The methodology based on generalized stress intensity factor and model of V-notch is used for reliable estimation of the fatigue crack growth rate in the area close to the free surface, where the effect of the vertex singularity is dominant. It is shown that decrease of the crack singularity exponent close to the vertex point leads to a decrease in the fatigue crack growth rate and contributes to a typical curved crack front observed experimentally for through crack.

Keywords in English

Vertex singularity, Generalized stress intensity factor, Stress singularity, Fatigue crack, V-notch

RIV year

2009

Released

20.04.2009

Publisher

Elsevier

ISSN

0927-0256

Journal

COMPUTATIONAL MATERIALS SCIENCE

Volume

45

Number

3

Pages from–to

653–657

Pages count

5

BIBTEX


@article{BUT49422,
  author="Pavel {Hutař} and Luboš {Náhlík} and Zdeněk {Knésl},
  title="Quantification of the influence of vertex singularities on fatigue crack behavior",
  journal="COMPUTATIONAL MATERIALS SCIENCE",
  year="2009",
  volume="45",
  number="3",
  month="April",
  pages="653--657",
  publisher="Elsevier",
  issn="0927-0256"
}