Detail publikačního výsledku

Influence of the V-notch opening angle on critical applied force values Influence of the V-notch opening angle on critical applied force values for the crack initiation from the sharp V-notch

ŠTEGNEROVÁ, K.; NÁHLÍK, L.; HUTAŘ, P.

Originální název

Influence of the V-notch opening angle on critical applied force values Influence of the V-notch opening angle on critical applied force values for the crack initiation from the sharp V-notch

Anglický název

Influence of the V-notch opening angle on critical applied force values Influence of the V-notch opening angle on critical applied force values for the crack initiation from the sharp V-notch

Druh

Článek Scopus

Originální abstrakt

The aim of this paper is to estimate a value of the critical applied force for a crack initiation from the 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 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 generalized stress intensity factor was obtained by using stability criterion based on the tangential stress component averaged over a critical distance d from the V-notch tip. Calculated values of the critical applied force were compared with experimental data taken from the literature.

Anglický abstrakt

The aim of this paper is to estimate a value of the critical applied force for a crack initiation from the 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 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 generalized stress intensity factor was obtained by using stability criterion based on the tangential stress component averaged over a critical distance d from the V-notch tip. Calculated values of the critical applied force were compared with experimental data taken from the literature.

Klíčová slova

Sharp V-notch, crack initiation, stress singularity, generalized stress intensity factor.

Klíčová slova v angličtině

Sharp V-notch, crack initiation, stress singularity, generalized stress intensity factor.

Autoři

ŠTEGNEROVÁ, K.; NÁHLÍK, L.; HUTAŘ, P.

Rok RIV

2016

Vydáno

30.01.2015

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

627

Číslo

2015

Stát

Švýcarská konfederace

Strany od

165

Strany do

168

Strany počet

4

BibTex

@article{BUT108864,
  author="Kateřina {Štegnerová} and Luboš {Náhlík} and Pavel {Hutař}",
  title="Influence of the V-notch opening angle on critical applied force values Influence of the V-notch opening angle on critical applied force values for the crack initiation from the sharp V-notch",
  journal="Key Engineering Materials (print)",
  year="2015",
  volume="627",
  number="2015",
  pages="165--168",
  doi="10.4028/www.scientific.net/KEM.627.165",
  issn="1013-9826"
}