Publication detail

ESTIMATION OF CRITICAL VALUES FOR CRACK PROPAGATION FROM SHARP V-NOTCH

MAJER, Z. HUTAŘ, P. NÁHLÍK, L. KNÉSL, Z.

Czech title

ESTIMATION OF CRITICAL VALUES FOR CRACK PROPAGATION FROM SHARP V-NOTCH

English title

ESTIMATION OF CRITICAL VALUES FOR CRACK PROPAGATION FROM SHARP V-NOTCH

Type

conference paper

Language

cs

Original abstract

The aim of this paper is to investigate the beginnings of crack propagation from sharp V-notches. Stress distribution around the tip of a V-notch is described on the basis of linear-elastic fracture mechanics. The V-notch is a singular stress concentrator with a singularity exponent dependent on the V-notch opening angle. The stability criteria are generalized for a stress singularity different from 0,5. Using FEM analysis the critical stress for crack initiation was estimated as a function of the V-notch angle. The results of numerical calculations were compared with experiments taken from the literature.

Czech abstract

The aim of this paper is to investigate the beginnings of crack propagation from sharp V-notches. Stress distribution around the tip of a V-notch is described on the basis of linear-elastic fracture mechanics. The V-notch is a singular stress concentrator with a singularity exponent dependent on the V-notch opening angle. The stability criteria are generalized for a stress singularity different from 0,5. Using FEM analysis the critical stress for crack initiation was estimated as a function of the V-notch angle. The results of numerical calculations were compared with experiments taken from the literature.

English abstract

The aim of this paper is to investigate the beginnings of crack propagation from sharp V-notches. Stress distribution around the tip of a V-notch is described on the basis of linear-elastic fracture mechanics. The V-notch is a singular stress concentrator with a singularity exponent dependent on the V-notch opening angle. The stability criteria are generalized for a stress singularity different from 0,5. Using FEM analysis the critical stress for crack initiation was estimated as a function of the V-notch angle. The results of numerical calculations were compared with experiments taken from the literature.

Keywords in Czech

v-vrub

Keywords in English

V-NOTCH

RIV year

2007

Released

07.05.2007

Publisher

Institute of Thermomechanics, Acade,y of Science of the Czech Republic, v. , v. , v.

Location

Praha

ISBN

978-80-87012-06-2

Book

Engineering Mechanics 2007, Book of Extended Abstracts

Pages from–to

167–168

Pages count

2

BIBTEX


@inproceedings{BUT28371,
  author="Zdeněk {Majer} and Pavel {Hutař} and Luboš {Náhlík} and Zdeněk {Knésl},
  title="ESTIMATION OF CRITICAL VALUES FOR CRACK PROPAGATION FROM SHARP V-NOTCH",
  booktitle="Engineering Mechanics 2007, Book of Extended Abstracts",
  year="2007",
  month="May",
  pages="167--168",
  publisher="Institute of Thermomechanics, Acade,y of Science of the Czech Republic, v. , v. , v.",
  address="Praha",
  isbn="978-80-87012-06-2"
}