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"
}