Detail publikace

Critical Value for Crack Propagation from Sharp V-notch

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

Originální název

Critical Value for Crack Propagation from Sharp V-notch

Anglický název

Critical Value for Crack Propagation from Sharp V-notch

Jazyk

en

Originální abstrakt

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.

Anglický abstrakt

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.

Dokumenty

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"
}