Detail publikačního výsledku

Stress Intensity Factors for Cracks Emanating from a Notch under Shear-Mode Loading

HORNÍKOVÁ, J.; ŠANDERA, P.; ŽÁK, S.; POKLUDA, J.

Originální název

Stress Intensity Factors for Cracks Emanating from a Notch under Shear-Mode Loading

Anglický název

Stress Intensity Factors for Cracks Emanating from a Notch under Shear-Mode Loading

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The influence of the notch geometry on the stress intensity factor at the front of the emanating cracks is well known for the opening loading mode. The critical length of the crack corresponding to a vanishing of the influence of the notch stress concentration can be approximately expressed by the formula aI,c = 0.5ρ(d/ρ)1/3, where d and ρ are the depth and radius of the notch, respectively. The aim of the paper was to find out if this formula could be, at least nearly, applicable also to the case of shear mode loading. The related numerical calculations for mode II and III loading were performed using the ANSYS code for various combinations of notch depths and crack lengths in a cylindrical specimen with a circumferential U-notch. The results revealed that, for mode II loading, the critical length was much higher than that predicted by the formula for mode I loading. On the other hand, the critical lengths for mode I and mode III were found to be nearly equal.

Anglický abstrakt

The influence of the notch geometry on the stress intensity factor at the front of the emanating cracks is well known for the opening loading mode. The critical length of the crack corresponding to a vanishing of the influence of the notch stress concentration can be approximately expressed by the formula aI,c = 0.5ρ(d/ρ)1/3, where d and ρ are the depth and radius of the notch, respectively. The aim of the paper was to find out if this formula could be, at least nearly, applicable also to the case of shear mode loading. The related numerical calculations for mode II and III loading were performed using the ANSYS code for various combinations of notch depths and crack lengths in a cylindrical specimen with a circumferential U-notch. The results revealed that, for mode II loading, the critical length was much higher than that predicted by the formula for mode I loading. On the other hand, the critical lengths for mode I and mode III were found to be nearly equal.

Klíčová slova

Critical Crack Length, Notch, Shear Modes, Stress Intensity Factor

Klíčová slova v angličtině

Critical Crack Length, Notch, Shear Modes, Stress Intensity Factor

Autoři

HORNÍKOVÁ, J.; ŠANDERA, P.; ŽÁK, S.; POKLUDA, J.

Rok RIV

2019

Vydáno

01.08.2018

Nakladatel

Trans Tech Publications

ISBN

9783035713503

Kniha

Key Engineering Materials: Advances in Fracture and Damage Mechanics XVII

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

774

Stát

Švýcarská konfederace

Strany od

48

Strany do

53

Strany počet

6

BibTex

@inproceedings{BUT151736,
  author="Jana {Horníková} and Pavel {Šandera} and Stanislav {Žák} and Jaroslav {Pokluda}",
  title="Stress Intensity Factors for Cracks Emanating from a Notch under Shear-Mode Loading",
  booktitle="Key Engineering Materials: Advances in Fracture and Damage Mechanics XVII",
  year="2018",
  journal="Key Engineering Materials (print)",
  volume="774",
  pages="48--53",
  publisher="Trans Tech Publications",
  doi="10.4028/www.scientific.net/KEM.774.48",
  isbn="9783035713503",
  issn="1013-9826"
}