Publication result detail

Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.

VOJTEK, T.; POKLUDA, J.; HOHENWARTER, A.; PIPPAN, R.

Original Title

Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.

English Title

Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.

Type

WoS Article

Original Abstract

This work is focused on an experimental study of shear-mode crack propagation in the ARMCO iron and the X5CrNi18-10 austenitic steel near the crack-growth threshold. Three experimental setups are used for a generation of cracks in simple-shear, compact tension-shear and torsion specimens. The crack path and the surface topography are studied by means of 3-dimensional reconstruction of fracture surfaces using stereophotogrammetry in a scanning electron microscope. Measurements by means of the profile analysis are used to determine local deflection and twisting angles of the crack with respect to the remote shear direction. The tendency to mode I crack branching is found to be much higher in austenite than in ferrite where both mode II and III cracks propagate close to the plane of maximal shear stress.

English abstract

This work is focused on an experimental study of shear-mode crack propagation in the ARMCO iron and the X5CrNi18-10 austenitic steel near the crack-growth threshold. Three experimental setups are used for a generation of cracks in simple-shear, compact tension-shear and torsion specimens. The crack path and the surface topography are studied by means of 3-dimensional reconstruction of fracture surfaces using stereophotogrammetry in a scanning electron microscope. Measurements by means of the profile analysis are used to determine local deflection and twisting angles of the crack with respect to the remote shear direction. The tendency to mode I crack branching is found to be much higher in austenite than in ferrite where both mode II and III cracks propagate close to the plane of maximal shear stress.

Keywords

fracture morphology, stereophotogrammetry, shear-mode fatigue cracks, mode I branching, ferrite, austenite

Key words in English

fracture morphology, stereophotogrammetry, shear-mode fatigue cracks, mode I branching, ferrite, austenite

Authors

VOJTEK, T.; POKLUDA, J.; HOHENWARTER, A.; PIPPAN, R.

RIV year

2014

Released

01.08.2013

Publisher

Elsevier

ISBN

0013-7944

Periodical

ENGINEERING FRACTURE MECHANICS

Volume

108

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

285

Pages to

293

Pages count

9

BibTex

@article{BUT96338,
  author="Tomáš {Vojtek} and Jaroslav {Pokluda} and Anton {Hohenwarter} and Reinhard {Pippan}",
  title="Three-dimensional morphology of fracture surfaces generated by mode II and III fatigue loading in ferrite and austenite.",
  journal="ENGINEERING FRACTURE MECHANICS",
  year="2013",
  volume="108",
  number="1",
  pages="285--293",
  doi="10.1016/j.engfracmech.2013.02.022",
  issn="0013-7944"
}