Publication detail

Critical Value for Crack Propagation from Sharp V-notch

NÁHLÍK, L. ŠTEGNEROVÁ, K. HUTAŘ, P. MAJER, Z.

Original Title

Critical Value for Crack Propagation from Sharp V-notch

English Title

Critical Value for Crack Propagation from Sharp V-notch

Type

journal article in Web of Science

Language

en

Original Abstract

The contribution is focused on estimation of a critical value of generalized stress intensity factor for crack propagation from sharp V-notches. Stress distribution around the tip of the V-notch is described on the base of generalized linear elastic fracture mechanics, because V-notch is a singular stress concentrator with stress singularity exponent different from 0.5 (depending on V-notch opening angle). Then also stability criteria based on strain energy density factor and average critical stress are generalized for the stress singularity different from 0.5. Using FE analysis the critical stresses for crack initiation was estimated and compared with experimental data from the literature.

English abstract

The contribution is focused on estimation of a critical value of generalized stress intensity factor for crack propagation from sharp V-notches. Stress distribution around the tip of the V-notch is described on the base of generalized linear elastic fracture mechanics, because V-notch is a singular stress concentrator with stress singularity exponent different from 0.5 (depending on V-notch opening angle). Then also stability criteria based on strain energy density factor and average critical stress are generalized for the stress singularity different from 0.5. Using FE analysis the critical stresses for crack initiation was estimated and compared with experimental data from the literature.

Keywords

V-notch, linear elastic fracture mechanics, stress singularity, generalized stress intensity factor, generalized strain energy density factor.

RIV year

2014

Released

06.01.2014

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Year of study

592-593

Number

1

State

CH

Pages from

177

Pages to

180

Pages count

4

Documents

BibTex


@article{BUT101763,
  author="Luboš {Náhlík} and Kateřina {Štegnerová} and Pavel {Hutař} and Zdeněk {Majer}",
  title="Critical Value for Crack Propagation from Sharp V-notch",
  annote="The contribution is focused on estimation of a critical value of generalized stress intensity factor for crack propagation from sharp V-notches. Stress distribution around the tip of the V-notch is described on the base of generalized linear elastic fracture mechanics, because V-notch is a singular stress concentrator with stress singularity exponent different from 0.5 (depending on V-notch opening angle). Then also stability criteria based on strain energy density factor and average critical stress are generalized for the stress singularity different from 0.5. Using FE analysis the critical stresses for crack initiation was estimated and compared with experimental data from the literature.",
  chapter="101763",
  doi="10.4028/www.scientific.net/KEM.592-593.177",
  number="1",
  volume="592-593",
  year="2014",
  month="january",
  pages="177--180",
  type="journal article in Web of Science"
}