Detail publikace

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

HORNÍKOVÁ, J. ŽÁK, S. ŠANDERA, P.

Anglický název

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

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

en

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 anglicky

shear mode, stress intensity factor, roughness, iron

Vydáno

01.03.2016

Nakladatel

Trans Tech Publications

ISBN

978-3-03835-541-0

ISSN

1013-9826

Kniha

Advances in Fracture and Damage Mechanics

Ročník

665

Číslo

1

Strany od–do

77–80

Počet stran

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",
  volume="665",
  number="1",
  month="March",
  pages="77--80",
  publisher="Trans Tech Publications",
  isbn="978-3-03835-541-0",
  issn="1013-9826"
}