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"
}