Detail publikačního výsledku

Numerical Fracture Analysis of Compact Tension Shear (CTS) Specimens with Tortuous Crack Fronts

HORNÍKOVÁ, J.; ŽÁK, S.; ŠANDERA, P.

Originální název

Numerical Fracture Analysis of Compact Tension Shear (CTS) Specimens with Tortuous Crack Fronts

Anglický název

Numerical Fracture Analysis of Compact Tension Shear (CTS) Specimens with Tortuous Crack Fronts

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The aim of the contribution is to assess the influence of the microstructure of materials on the effective values of stress intensity factors. In this paper some results of 3D-finite element analyses of a CTS-specimen with a tortuous crack are presented. The specimen is subject to an in-plane shear remote loading (mode II) and tortuous crack flanks simulate rough cracks in polycrystalline materials. Finite element calculation by using the commercially available FE-code ANSYS has been carried out to determine stress/strain distribution in the vicinity of crack front and the local values of stress intensity factors are evaluated along the crack front. The existence of friction forces generated by sliding of crack wake asperities is included into calculations. Respective effective values are determined in dependence of the roughness of crack flanks. Results achieved allows to characterize the influence of microstructure to crack growth.

Anglický abstrakt

The aim of the contribution is to assess the influence of the microstructure of materials on the effective values of stress intensity factors. In this paper some results of 3D-finite element analyses of a CTS-specimen with a tortuous crack are presented. The specimen is subject to an in-plane shear remote loading (mode II) and tortuous crack flanks simulate rough cracks in polycrystalline materials. Finite element calculation by using the commercially available FE-code ANSYS has been carried out to determine stress/strain distribution in the vicinity of crack front and the local values of stress intensity factors are evaluated along the crack front. The existence of friction forces generated by sliding of crack wake asperities is included into calculations. Respective effective values are determined in dependence of the roughness of crack flanks. Results achieved allows to characterize the influence of microstructure to crack growth.

Klíčová slova

shear mode, stress intensity factor, roughness, iron

Klíčová slova v angličtině

shear mode, stress intensity factor, roughness, iron

Autoři

HORNÍKOVÁ, J.; ŽÁK, S.; ŠANDERA, P.

Rok RIV

2017

Vydáno

01.03.2016

Nakladatel

Trans Tech Publications

ISBN

978-3-03835-541-0

Kniha

Advances in Fracture and Damage Mechanics

Edice

Key Engineering MAterials

ISSN

1013-9826

Periodikum

Key Engineering Materials (print)

Svazek

665

Číslo

1

Stát

Švýcarská konfederace

Strany od

77

Strany do

80

Strany počet

4

BibTex

@inproceedings{BUT119617,
  author="Jana {Horníková} and Stanislav {Žák} and Pavel {Šandera}",
  title="Numerical Fracture Analysis of Compact Tension Shear (CTS) Specimens with Tortuous Crack Fronts",
  booktitle="Advances in Fracture and Damage Mechanics",
  year="2016",
  series="Key Engineering MAterials",
  journal="Key Engineering Materials (print)",
  volume="665",
  number="1",
  pages="77--80",
  publisher="Trans Tech Publications",
  doi="10.4028/www.scientific.net/KEM.665.77",
  isbn="978-3-03835-541-0",
  issn="1013-9826"
}