Detail publikace

Critical applied stresses for a crack initiation from a sharp V-notch

NÁHLÍK, L. ŠTEGNEROVÁ, K. HUTAŘ, P.

Originální název

Critical applied stresses for a crack initiation from a sharp V-notch

Typ

článek v časopise ve Scopus, Jsc

Jazyk

angličtina

Originální abstrakt

The aim of the paper is to estimate a value of the critical applied stress for a crack initiation from a sharp V-notch tip. The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent differs from 0.5 in the studied case. The value of the stress singularity exponent depends on the V-notch opening angle. The finite element method was used for a determination of stress distribution in the vicinity of the sharp V-notch tip and for the estimation of the generalized stress intensity factor depending on the V-notch opening angle. Critical value of the generalized stress intensity factor was obtained using stability criteria based on the opening stress component averaged over a critical distance d from the V-notch tip and generalized strain energy density factor. Calculated values of the critical applied stresses were compared with experimental data from the literature and applicability of the LEFM concept is discussed.

Klíčová slova

Crack initiation; V-notch; critical stress; strain energy density factor; generalized linear elastic fracture mechanics; fracture criteria.

Autoři

NÁHLÍK, L.; ŠTEGNEROVÁ, K.; HUTAŘ, P.

Rok RIV

2014

Vydáno

31. 10. 2014

Nakladatel

Gruppo Italiano Frattura

ISSN

1971-8993

Periodikum

Frattura ed Integrita Strutturale

Ročník

8

Číslo

30

Stát

Italská republika

Strany od

55

Strany do

61

Strany počet

7

URL

https://www.fracturae.com/index.php/fis/article/view/1286

Plný text v Digitální knihovně

http://hdl.handle.net/11012/180640

BibTex

@article{BUT110393,
  author="Luboš {Náhlík} and Pavel {Hutař} and Kateřina {Štegnerová}",
  title="Critical applied stresses for a crack initiation from a sharp V-notch",
  journal="Frattura ed Integrita Strutturale",
  year="2014",
  volume="8",
  number="30",
  pages="55--61",
  doi="10.3221/IGF-ESIS.30.08",
  issn="1971-8993",
  url="https://www.fracturae.com/index.php/fis/article/view/1286"
}